Remove src/lib/crypto/krb/enc_provider, which was accidentally

resurrected in the S4U merge after being moved into the back-end
directories in r22707.

ticket: 6563

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@22744 dc483132-0cff-0310-8789-dd5450dbe970

7 files changed, 0 insertions, 1214 deletions

diff --git a/src/lib/crypto/krb/enc_provider/Makefile.in b/src/lib/crypto/krb/enc_provider/Makefile.in
deleted file mode 100644
index 2eedf1d..0000000
--- a/src/lib/crypto/krb/enc_provider/Makefile.in
+++ /dev/null
@@ -1,41 +0,0 @@
-thisconfigdir=../../../..
-myfulldir=lib/crypto/krb/enc_provider
-mydir=lib/crypto/krb/enc_provider
-BUILDTOP=$(REL)..$(S)..$(S)..$(S)..
-LOCALINCLUDES = -I$(srcdir)/../../@CRYPTO_IMPL@/des -I$(srcdir)/../../@CRYPTO_IMPL@/arcfour 	\
-		-I$(srcdir)/../../@CRYPTO_IMPL@/aes -I$(srcdir)/.. -I$(srcdir)/../../@CRYPTO_IMPL@ 
-DEFS=
-
-##DOS##BUILDTOP = ..\..\..\..
-##DOS##PREFIXDIR=enc_provider
-##DOS##OBJFILE=..\$(OUTPRE)enc_prov.lst
-
-PROG_LIBPATH=-L$(TOPLIBD)
-PROG_RPATH=$(KRB5_LIBDIR)
-
-STLIBOBJS= des.o des3.o rc4.o aes.o 
-
-OBJS= \
-	$(OUTPRE)des.$(OBJEXT) \
-	$(OUTPRE)des3.$(OBJEXT) \
-	$(OUTPRE)aes.$(OBJEXT) \
-	$(OUTPRE)rc4.$(OBJEXT)
-
-SRCS= \
-	$(srcdir)/des.c \
-	$(srcdir)/des3.c \
-	$(srcdir)/aes.c \
-	$(srcdir)/rc4.c
-
-##DOS##LIBOBJS = $(OBJS)
-
-all-unix:: all-libobjs
-
-includes:: depend
-
-depend:: $(SRCS)
-
-clean-unix:: clean-libobjs
-
-@libobj_frag@
-
diff --git a/src/lib/crypto/krb/enc_provider/aes.c b/src/lib/crypto/krb/enc_provider/aes.c
deleted file mode 100644
index 060d119..0000000
--- a/src/lib/crypto/krb/enc_provider/aes.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * lib/crypto/enc_provider/aes.c
- *
- * Copyright (C) 2003, 2007, 2008 by the Massachusetts Institute of Technology.
- * All rights reserved.
- *
- * Export of this software from the United States of America may
- *   require a specific license from the United States Government.
- *   It is the responsibility of any person or organization contemplating
- *   export to obtain such a license before exporting.
- *
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of M.I.T. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  Furthermore if you modify this software you must label
- * your software as modified software and not distribute it in such a
- * fashion that it might be confused with the original M.I.T. software.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- */
-
-#include "k5-int.h"
-#include "enc_provider.h"
-#include "aes.h"
-#include "../aead.h"
-
-#if 0
-aes_rval aes_blk_len(unsigned int blen, aes_ctx cx[1]);
-aes_rval aes_enc_key(const unsigned char in_key[], unsigned int klen, aes_ctx cx[1]);
-aes_rval aes_enc_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1]);
-aes_rval aes_dec_key(const unsigned char in_key[], unsigned int klen, aes_ctx cx[1]);
-aes_rval aes_dec_blk(const unsigned char in_blk[], unsigned char out_blk[], const aes_ctx cx[1]);
-#endif
-
-#define CHECK_SIZES 0
-
-#if 0
-static void printd (const char *descr, krb5_data *d) {
-    int i, j;
-    const int r = 16;
-
-    printf("%s:", descr);
-
-    for (i = 0; i < d->length; i += r) {
-	printf("\n  %04x: ", i);
-	for (j = i; j < i + r && j < d->length; j++)
-	    printf(" %02x", 0xff & d->data[j]);
-#ifdef SHOW_TEXT
-	for (; j < i + r; j++)
-	    printf("   ");
-	printf("   ");
-	for (j = i; j < i + r && j < d->length; j++) {
-	    int c = 0xff & d->data[j];
-	    printf("%c", isprint(c) ? c : '.');
-	}
-#endif
-    }
-    printf("\n");
-}
-#endif
-
-static inline void enc(char *out, const char *in, aes_ctx *ctx)
-{
-    if (aes_enc_blk((const unsigned char *)in, (unsigned char *)out, ctx)
-	!= aes_good)
-	abort();
-}
-static inline void dec(char *out, const char *in, aes_ctx *ctx)
-{
-    if (aes_dec_blk((const unsigned char *)in, (unsigned char *)out, ctx)
-	!= aes_good)
-	abort();
-}
-
-static void xorblock(char *out, const char *in)
-{
-    int z;
-    for (z = 0; z < BLOCK_SIZE; z++)
-	out[z] ^= in[z];
-}
-
-krb5_error_code
-krb5int_aes_encrypt(const krb5_keyblock *key, const krb5_data *ivec,
-		    const krb5_data *input, krb5_data *output)
-{
-    aes_ctx ctx;
-    char tmp[BLOCK_SIZE], tmp2[BLOCK_SIZE], tmp3[BLOCK_SIZE];
-    int nblocks = 0, blockno;
-
-/*    CHECK_SIZES; */
-
-    if (aes_enc_key(key->contents, key->length, &ctx) != aes_good)
-	abort();
-
-    if (ivec)
-	memcpy(tmp, ivec->data, BLOCK_SIZE);
-    else
-	memset(tmp, 0, BLOCK_SIZE);
-
-    nblocks = (input->length + BLOCK_SIZE - 1) / BLOCK_SIZE;
-
-    if (nblocks == 1) {
-	/* XXX Used for DK function.  */
-	enc(output->data, input->data, &ctx);
-    } else {
-	unsigned int nleft;
-
-	for (blockno = 0; blockno < nblocks - 2; blockno++) {
-	    xorblock(tmp, input->data + blockno * BLOCK_SIZE);
-	    enc(tmp2, tmp, &ctx);
-	    memcpy(output->data + blockno * BLOCK_SIZE, tmp2, BLOCK_SIZE);
-
-	    /* Set up for next block.  */
-	    memcpy(tmp, tmp2, BLOCK_SIZE);
-	}
-	/* Do final CTS step for last two blocks (the second of which
-	   may or may not be incomplete).  */
-	xorblock(tmp, input->data + (nblocks - 2) * BLOCK_SIZE);
-	enc(tmp2, tmp, &ctx);
-	nleft = input->length - (nblocks - 1) * BLOCK_SIZE;
-	memcpy(output->data + (nblocks - 1) * BLOCK_SIZE, tmp2, nleft);
-	memcpy(tmp, tmp2, BLOCK_SIZE);
-
-	memset(tmp3, 0, sizeof(tmp3));
-	memcpy(tmp3, input->data + (nblocks - 1) * BLOCK_SIZE, nleft);
-	xorblock(tmp, tmp3);
-	enc(tmp2, tmp, &ctx);
-	memcpy(output->data + (nblocks - 2) * BLOCK_SIZE, tmp2, BLOCK_SIZE);
-	if (ivec)
-	    memcpy(ivec->data, tmp2, BLOCK_SIZE);
-    }
-
-    return 0;
-}
-
-krb5_error_code
-krb5int_aes_decrypt(const krb5_keyblock *key, const krb5_data *ivec,
-		    const krb5_data *input, krb5_data *output)
-{
-    aes_ctx ctx;
-    char tmp[BLOCK_SIZE], tmp2[BLOCK_SIZE], tmp3[BLOCK_SIZE];
-    int nblocks = 0, blockno;
-
-    CHECK_SIZES;
-
-    if (aes_dec_key(key->contents, key->length, &ctx) != aes_good)
-	abort();
-
-    if (ivec)
-	memcpy(tmp, ivec->data, BLOCK_SIZE);
-    else
-	memset(tmp, 0, BLOCK_SIZE);
-
-    nblocks = (input->length + BLOCK_SIZE - 1) / BLOCK_SIZE;
-
-    if (nblocks == 1) {
-	if (input->length < BLOCK_SIZE)
-	    abort();
-	dec(output->data, input->data, &ctx);
-    } else {
-
-	for (blockno = 0; blockno < nblocks - 2; blockno++) {
-	    dec(tmp2, input->data + blockno * BLOCK_SIZE, &ctx);
-	    xorblock(tmp2, tmp);
-	    memcpy(output->data + blockno * BLOCK_SIZE, tmp2, BLOCK_SIZE);
-	    memcpy(tmp, input->data + blockno * BLOCK_SIZE, BLOCK_SIZE);
-	}
-	/* Do last two blocks, the second of which (next-to-last block
-	   of plaintext) may be incomplete.  */
-	dec(tmp2, input->data + (nblocks - 2) * BLOCK_SIZE, &ctx);
-	/* Set tmp3 to last ciphertext block, padded.  */
-	memset(tmp3, 0, sizeof(tmp3));
-	memcpy(tmp3, input->data + (nblocks - 1) * BLOCK_SIZE,
-	       input->length - (nblocks - 1) * BLOCK_SIZE);
-	/* Set tmp2 to last (possibly partial) plaintext block, and
-	   save it.  */
-	xorblock(tmp2, tmp3);
-	memcpy(output->data + (nblocks - 1) * BLOCK_SIZE, tmp2,
-	       input->length - (nblocks - 1) * BLOCK_SIZE);
-	/* Maybe keep the trailing part, and copy in the last
-	   ciphertext block.  */
-	memcpy(tmp2, tmp3, input->length - (nblocks - 1) * BLOCK_SIZE);
-	/* Decrypt, to get next to last plaintext block xor previous
-	   ciphertext.  */
-	dec(tmp3, tmp2, &ctx);
-	xorblock(tmp3, tmp);
-	memcpy(output->data + (nblocks - 2) * BLOCK_SIZE, tmp3, BLOCK_SIZE);
-	if (ivec)
-	    memcpy(ivec->data, input->data + (nblocks - 2) * BLOCK_SIZE,
-		   BLOCK_SIZE);
-    }
-
-    return 0;
-}
-
-static krb5_error_code
-krb5int_aes_encrypt_iov(const krb5_keyblock *key,
-		        const krb5_data *ivec,
-		        krb5_crypto_iov *data,
-		        size_t num_data)
-{
-    aes_ctx ctx;
-    char tmp[BLOCK_SIZE], tmp2[BLOCK_SIZE];
-    int nblocks = 0, blockno;
-    size_t input_length, i;
-
-    if (aes_enc_key(key->contents, key->length, &ctx) != aes_good)
-	abort();
-
-    if (ivec != NULL)
-	memcpy(tmp, ivec->data, BLOCK_SIZE);
-    else
-	memset(tmp, 0, BLOCK_SIZE);
-
-    for (i = 0, input_length = 0; i < num_data; i++) {
-	krb5_crypto_iov *iov = &data[i];
-
-	if (ENCRYPT_IOV(iov))
-	    input_length += iov->data.length;
-    }
-
-    nblocks = (input_length + BLOCK_SIZE - 1) / BLOCK_SIZE;
-
-    assert(nblocks > 1);
-
-    {
-	char blockN2[BLOCK_SIZE];   /* second last */
-	char blockN1[BLOCK_SIZE];   /* last block */
-	struct iov_block_state input_pos, output_pos;
-
-	IOV_BLOCK_STATE_INIT(&input_pos);
-	IOV_BLOCK_STATE_INIT(&output_pos);
-
-	for (blockno = 0; blockno < nblocks - 2; blockno++) {
-	    char blockN[BLOCK_SIZE];
-
-	    krb5int_c_iov_get_block((unsigned char *)blockN, BLOCK_SIZE, data, num_data, &input_pos);
-	    xorblock(tmp, blockN);
-	    enc(tmp2, tmp, &ctx);
-	    krb5int_c_iov_put_block(data, num_data, (unsigned char *)tmp2, BLOCK_SIZE, &output_pos);
-
-	    /* Set up for next block.  */
-	    memcpy(tmp, tmp2, BLOCK_SIZE);
-	}
-
-	/* Do final CTS step for last two blocks (the second of which
-	   may or may not be incomplete).  */
-
-	/* First, get the last two blocks */
-	memset(blockN1, 0, sizeof(blockN1)); /* pad last block with zeros */
-	krb5int_c_iov_get_block((unsigned char *)blockN2, BLOCK_SIZE, data, num_data, &input_pos);
-	krb5int_c_iov_get_block((unsigned char *)blockN1, BLOCK_SIZE, data, num_data, &input_pos);
-
-	/* Encrypt second last block */
-	xorblock(tmp, blockN2);
-	enc(tmp2, tmp, &ctx);
-	memcpy(blockN2, tmp2, BLOCK_SIZE); /* blockN2 now contains first block */
-	memcpy(tmp, tmp2, BLOCK_SIZE);
-
-	/* Encrypt last block */
-	xorblock(tmp, blockN1);
-	enc(tmp2, tmp, &ctx);
-	memcpy(blockN1, tmp2, BLOCK_SIZE);
-
-	/* Put the last two blocks back into the iovec (reverse order) */
-	krb5int_c_iov_put_block(data, num_data, (unsigned char *)blockN1, BLOCK_SIZE, &output_pos);
-	krb5int_c_iov_put_block(data, num_data, (unsigned char *)blockN2, BLOCK_SIZE, &output_pos);
-
-	if (ivec != NULL)
-	    memcpy(ivec->data, blockN1, BLOCK_SIZE);
-    }
-
-    return 0;
-}
-
-static krb5_error_code
-krb5int_aes_decrypt_iov(const krb5_keyblock *key,
-		        const krb5_data *ivec,
-		        krb5_crypto_iov *data,
-		        size_t num_data)
-{
-    aes_ctx ctx;
-    char tmp[BLOCK_SIZE], tmp2[BLOCK_SIZE], tmp3[BLOCK_SIZE];
-    int nblocks = 0, blockno;
-    unsigned int i;
-    size_t input_length;
-
-    CHECK_SIZES;
-
-    if (aes_dec_key(key->contents, key->length, &ctx) != aes_good)
-	abort();
-
-    if (ivec != NULL)
-	memcpy(tmp, ivec->data, BLOCK_SIZE);
-    else
-	memset(tmp, 0, BLOCK_SIZE);
-
-    for (i = 0, input_length = 0; i < num_data; i++) {
-	krb5_crypto_iov *iov = &data[i];
-
-	if (ENCRYPT_IOV(iov))
-	    input_length += iov->data.length;
-    }
-
-    nblocks = (input_length + BLOCK_SIZE - 1) / BLOCK_SIZE;
-
-    assert(nblocks > 1);
-
-    {
-	char blockN2[BLOCK_SIZE];   /* second last */
-	char blockN1[BLOCK_SIZE];   /* last block */
-	struct iov_block_state input_pos, output_pos;
-
-	IOV_BLOCK_STATE_INIT(&input_pos);
-	IOV_BLOCK_STATE_INIT(&output_pos);
-
-	for (blockno = 0; blockno < nblocks - 2; blockno++) {
-	    char blockN[BLOCK_SIZE];
-
-	    krb5int_c_iov_get_block((unsigned char *)blockN, BLOCK_SIZE, data, num_data, &input_pos);
-	    dec(tmp2, blockN, &ctx);
-	    xorblock(tmp2, tmp);
-	    krb5int_c_iov_put_block(data, num_data, (unsigned char *)tmp2, BLOCK_SIZE, &output_pos);
-	    memcpy(tmp, blockN, BLOCK_SIZE);
-	}
-
-	/* Do last two blocks, the second of which (next-to-last block
-	   of plaintext) may be incomplete.  */
-
-	/* First, get the last two encrypted blocks */
-	memset(blockN1, 0, sizeof(blockN1)); /* pad last block with zeros */
-	krb5int_c_iov_get_block((unsigned char *)blockN2, BLOCK_SIZE, data, num_data, &input_pos);
-	krb5int_c_iov_get_block((unsigned char *)blockN1, BLOCK_SIZE, data, num_data, &input_pos);
-
-	/* Decrypt second last block */
-	dec(tmp2, blockN2, &ctx);
-	/* Set tmp2 to last (possibly partial) plaintext block, and
-	   save it.  */
-	xorblock(tmp2, blockN1);
-	memcpy(blockN2, tmp2, BLOCK_SIZE);
-
-	/* Maybe keep the trailing part, and copy in the last
-	   ciphertext block.  */
-	input_length %= BLOCK_SIZE;
-	memcpy(tmp2, blockN1, input_length ? input_length : BLOCK_SIZE);
-	dec(tmp3, tmp2, &ctx);
-	xorblock(tmp3, tmp);
-	/* Copy out ivec first before we clobber blockN1 with plaintext */
-	if (ivec != NULL)
-	    memcpy(ivec->data, blockN1, BLOCK_SIZE);
-	memcpy(blockN1, tmp3, BLOCK_SIZE);
-
-	/* Put the last two blocks back into the iovec */
-	krb5int_c_iov_put_block(data, num_data, (unsigned char *)blockN1, BLOCK_SIZE, &output_pos);
-	krb5int_c_iov_put_block(data, num_data, (unsigned char *)blockN2, BLOCK_SIZE, &output_pos);
-    }
-
-    return 0;
-}
-
-static krb5_error_code
-k5_aes_make_key(const krb5_data *randombits, krb5_keyblock *key)
-{
-    if (key->length != 16 && key->length != 32)
-	return(KRB5_BAD_KEYSIZE);
-    if (randombits->length != key->length)
-	return(KRB5_CRYPTO_INTERNAL);
-
-    key->magic = KV5M_KEYBLOCK;
-
-    memcpy(key->contents, randombits->data, randombits->length);
-    return(0);
-}
-
-static krb5_error_code
-krb5int_aes_init_state (const krb5_keyblock *key, krb5_keyusage usage,
-			krb5_data *state)
-{
-    state->length = 16;
-    state->data = (void *) malloc(16);
-    if (state->data == NULL)
-	return ENOMEM;
-    memset(state->data, 0, state->length);
-    return 0;
-}
-
-const struct krb5_enc_provider krb5int_enc_aes128 = {
-    16,
-    16, 16,
-    krb5int_aes_encrypt,
-    krb5int_aes_decrypt,
-    k5_aes_make_key,
-    krb5int_aes_init_state,
-    krb5int_default_free_state,
-    krb5int_aes_encrypt_iov,
-    krb5int_aes_decrypt_iov
-};
-
-const struct krb5_enc_provider krb5int_enc_aes256 = {
-    16,
-    32, 32,
-    krb5int_aes_encrypt,
-    krb5int_aes_decrypt,
-    k5_aes_make_key,
-    krb5int_aes_init_state,
-    krb5int_default_free_state,
-    krb5int_aes_encrypt_iov,
-    krb5int_aes_decrypt_iov
-};
-
diff --git a/src/lib/crypto/krb/enc_provider/deps b/src/lib/crypto/krb/enc_provider/deps
deleted file mode 100644
index 0649762..0000000
--- a/src/lib/crypto/krb/enc_provider/deps
+++ /dev/null
@@ -1,49 +0,0 @@
-# 
-# Generated makefile dependencies follow.
-#
-des.so des.po $(OUTPRE)des.$(OBJEXT): $(BUILDTOP)/include/autoconf.h \
-  $(BUILDTOP)/include/krb5/krb5.h $(BUILDTOP)/include/osconf.h \
-  $(BUILDTOP)/include/profile.h $(COM_ERR_DEPS) $(SRCTOP)/include/k5-buf.h \
-  $(SRCTOP)/include/k5-err.h $(SRCTOP)/include/k5-gmt_mktime.h \
-  $(SRCTOP)/include/k5-int-pkinit.h $(SRCTOP)/include/k5-int.h \
-  $(SRCTOP)/include/k5-platform.h $(SRCTOP)/include/k5-plugin.h \
-  $(SRCTOP)/include/k5-thread.h $(SRCTOP)/include/krb5.h \
-  $(SRCTOP)/include/krb5/locate_plugin.h $(SRCTOP)/include/krb5/preauth_plugin.h \
-  $(SRCTOP)/include/port-sockets.h $(SRCTOP)/include/socket-utils.h \
-  $(srcdir)/../../builtin/des/des_int.h $(srcdir)/../aead.h \
-  $(srcdir)/../cksumtypes.h des.c enc_provider.h
-des3.so des3.po $(OUTPRE)des3.$(OBJEXT): $(BUILDTOP)/include/autoconf.h \
-  $(BUILDTOP)/include/krb5/krb5.h $(BUILDTOP)/include/osconf.h \
-  $(BUILDTOP)/include/profile.h $(COM_ERR_DEPS) $(SRCTOP)/include/k5-buf.h \
-  $(SRCTOP)/include/k5-err.h $(SRCTOP)/include/k5-gmt_mktime.h \
-  $(SRCTOP)/include/k5-int-pkinit.h $(SRCTOP)/include/k5-int.h \
-  $(SRCTOP)/include/k5-platform.h $(SRCTOP)/include/k5-plugin.h \
-  $(SRCTOP)/include/k5-thread.h $(SRCTOP)/include/krb5.h \
-  $(SRCTOP)/include/krb5/locate_plugin.h $(SRCTOP)/include/krb5/preauth_plugin.h \
-  $(SRCTOP)/include/port-sockets.h $(SRCTOP)/include/socket-utils.h \
-  $(srcdir)/../../builtin/des/des_int.h $(srcdir)/../aead.h \
-  $(srcdir)/../cksumtypes.h des3.c
-aes.so aes.po $(OUTPRE)aes.$(OBJEXT): $(BUILDTOP)/include/autoconf.h \
-  $(BUILDTOP)/include/krb5/krb5.h $(BUILDTOP)/include/osconf.h \
-  $(BUILDTOP)/include/profile.h $(COM_ERR_DEPS) $(SRCTOP)/include/k5-buf.h \
-  $(SRCTOP)/include/k5-err.h $(SRCTOP)/include/k5-gmt_mktime.h \
-  $(SRCTOP)/include/k5-int-pkinit.h $(SRCTOP)/include/k5-int.h \
-  $(SRCTOP)/include/k5-platform.h $(SRCTOP)/include/k5-plugin.h \
-  $(SRCTOP)/include/k5-thread.h $(SRCTOP)/include/krb5.h \
-  $(SRCTOP)/include/krb5/locate_plugin.h $(SRCTOP)/include/krb5/preauth_plugin.h \
-  $(SRCTOP)/include/port-sockets.h $(SRCTOP)/include/socket-utils.h \
-  $(srcdir)/../../builtin/aes/aes.h $(srcdir)/../../builtin/aes/uitypes.h \
-  $(srcdir)/../aead.h $(srcdir)/../cksumtypes.h aes.c \
-  enc_provider.h
-rc4.so rc4.po $(OUTPRE)rc4.$(OBJEXT): $(BUILDTOP)/include/autoconf.h \
-  $(BUILDTOP)/include/krb5/krb5.h $(BUILDTOP)/include/osconf.h \
-  $(BUILDTOP)/include/profile.h $(COM_ERR_DEPS) $(SRCTOP)/include/k5-buf.h \
-  $(SRCTOP)/include/k5-err.h $(SRCTOP)/include/k5-gmt_mktime.h \
-  $(SRCTOP)/include/k5-int-pkinit.h $(SRCTOP)/include/k5-int.h \
-  $(SRCTOP)/include/k5-platform.h $(SRCTOP)/include/k5-plugin.h \
-  $(SRCTOP)/include/k5-thread.h $(SRCTOP)/include/krb5.h \
-  $(SRCTOP)/include/krb5/locate_plugin.h $(SRCTOP)/include/krb5/preauth_plugin.h \
-  $(SRCTOP)/include/port-sockets.h $(SRCTOP)/include/socket-utils.h \
-  $(srcdir)/../../builtin/arcfour/arcfour-int.h $(srcdir)/../../builtin/arcfour/arcfour.h \
-  $(srcdir)/../aead.h $(srcdir)/../cksumtypes.h enc_provider.h \
-  rc4.c
diff --git a/src/lib/crypto/krb/enc_provider/des.c b/src/lib/crypto/krb/enc_provider/des.c
deleted file mode 100644
index 547f6b9..0000000
--- a/src/lib/crypto/krb/enc_provider/des.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Copyright (C) 1998 by the FundsXpress, INC.
- * 
- * All rights reserved.
- * 
- * Export of this software from the United States of America may require
- * a specific license from the United States Government.  It is the
- * responsibility of any person or organization contemplating export to
- * obtain such a license before exporting.
- * 
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of FundsXpress. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  FundsXpress makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- * 
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#include "k5-int.h"
-#include "des_int.h"
-#include "enc_provider.h"
-#include "aead.h"
-
-static krb5_error_code
-k5_des_docrypt(const krb5_keyblock *key, const krb5_data *ivec,
-	       const krb5_data *input, krb5_data *output, int enc)
-{
-    mit_des_key_schedule schedule;
-
-    /* key->enctype was checked by the caller */
-
-    if (key->length != 8)
-	return(KRB5_BAD_KEYSIZE);
-    if ((input->length%8) != 0)
-	return(KRB5_BAD_MSIZE);
-    if (ivec && (ivec->length != 8))
-	return(KRB5_BAD_MSIZE);
-    if (input->length != output->length)
-	return(KRB5_BAD_MSIZE);
-
-    switch (mit_des_key_sched(key->contents, schedule)) {
-    case -1:
-	return(KRB5DES_BAD_KEYPAR);
-    case -2:
-	return(KRB5DES_WEAK_KEY);
-    }
-
-    /* this has a return value, but the code always returns zero */
-
-    mit_des_cbc_encrypt((krb5_pointer) input->data,
-			(krb5_pointer) output->data, input->length,
-			schedule,
-			(ivec
-			 ? (const unsigned char *) ivec->data
-			 : (const unsigned char *) mit_des_zeroblock),
-			enc);
-
-    memset(schedule, 0, sizeof(schedule));
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des_encrypt(const krb5_keyblock *key, const krb5_data *ivec,
-	       const krb5_data *input, krb5_data *output)
-{
-    return(k5_des_docrypt(key, ivec, input, output, 1));
-}
-
-static krb5_error_code
-k5_des_decrypt(const krb5_keyblock *key, const krb5_data *ivec,
-	       const krb5_data *input, krb5_data *output)
-{
-    return(k5_des_docrypt(key, ivec, input, output, 0));
-}
-
-static krb5_error_code
-k5_des_make_key(const krb5_data *randombits, krb5_keyblock *key)
-{
-    if (key->length != 8)
-	return(KRB5_BAD_KEYSIZE);
-    if (randombits->length != 7)
-	return(KRB5_CRYPTO_INTERNAL);
-
-    key->magic = KV5M_KEYBLOCK;
-    key->length = 8;
-
-    /* take the seven bytes, move them around into the top 7 bits of the
-       8 key bytes, then compute the parity bits */
-
-    memcpy(key->contents, randombits->data, randombits->length);
-    key->contents[7] = (((key->contents[0]&1)<<1) | ((key->contents[1]&1)<<2) |
-			((key->contents[2]&1)<<3) | ((key->contents[3]&1)<<4) |
-			((key->contents[4]&1)<<5) | ((key->contents[5]&1)<<6) |
-			((key->contents[6]&1)<<7));
-
-    mit_des_fixup_key_parity(key->contents);
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des_docrypt_iov(const krb5_keyblock *key, const krb5_data *ivec,
-		   krb5_crypto_iov *data, size_t num_data, int enc)
-{
-    mit_des_key_schedule schedule;
-    size_t input_length = 0;
-    unsigned int i;
-
-    /* key->enctype was checked by the caller */
-
-    if (key->length != 8)
-	return(KRB5_BAD_KEYSIZE);
-
-    for (i = 0; i < num_data; i++) {
-	const krb5_crypto_iov *iov = &data[i];
-
-	if (ENCRYPT_DATA_IOV(iov))
-	    input_length += iov->data.length;
-    }
-
-    if ((input_length % 8) != 0)
-	return(KRB5_BAD_MSIZE);
-    if (ivec && (ivec->length != 8))
-	return(KRB5_BAD_MSIZE);
-
-    switch (mit_des_key_sched(key->contents, schedule)) {
-    case -1:
-	return(KRB5DES_BAD_KEYPAR);
-    case -2:
-	return(KRB5DES_WEAK_KEY);
-    }
-
-    /* this has a return value, but the code always returns zero */
-    if (enc)
-	krb5int_des_cbc_encrypt_iov(data, num_data, schedule, ivec ? ivec->data : NULL);
-    else
-	krb5int_des_cbc_decrypt_iov(data, num_data, schedule, ivec ? ivec->data : NULL);
-
-    memset(schedule, 0, sizeof(schedule));
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des_encrypt_iov(const krb5_keyblock *key,
-		    const krb5_data *ivec,
-		    krb5_crypto_iov *data,
-		    size_t num_data)
-{
-    return k5_des_docrypt_iov(key, ivec, data, num_data, 1);
-}
-
-static krb5_error_code
-k5_des_decrypt_iov(const krb5_keyblock *key,
-		   const krb5_data *ivec,
-		   krb5_crypto_iov *data,
-		   size_t num_data)
-{
-    return k5_des_docrypt_iov(key, ivec, data, num_data, 0);
-}
-
-const struct krb5_enc_provider krb5int_enc_des = {
-    8,
-    7, 8,
-    k5_des_encrypt,
-    k5_des_decrypt,
-    k5_des_make_key,
-    krb5int_des_init_state,
-    krb5int_default_free_state,
-    k5_des_encrypt_iov,
-    k5_des_decrypt_iov
-};
diff --git a/src/lib/crypto/krb/enc_provider/des3.c b/src/lib/crypto/krb/enc_provider/des3.c
deleted file mode 100644
index 412c994..0000000
--- a/src/lib/crypto/krb/enc_provider/des3.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * Copyright (C) 1998 by the FundsXpress, INC.
- * 
- * All rights reserved.
- * 
- * Export of this software from the United States of America may require
- * a specific license from the United States Government.  It is the
- * responsibility of any person or organization contemplating export to
- * obtain such a license before exporting.
- * 
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of FundsXpress. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  FundsXpress makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- * 
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#include "k5-int.h"
-#include "des_int.h"
-#include "../aead.h"
-
-static krb5_error_code
-validate_and_schedule(const krb5_keyblock *key, const krb5_data *ivec,
-		      const krb5_data *input, const krb5_data *output,
-		      mit_des3_key_schedule *schedule)
-{
-    /* key->enctype was checked by the caller */
-
-    if (key->length != 24)
-	return(KRB5_BAD_KEYSIZE);
-    if ((input->length%8) != 0)
-	return(KRB5_BAD_MSIZE);
-    if (ivec && (ivec->length != 8))
-	return(KRB5_BAD_MSIZE);
-    if (input->length != output->length)
-	return(KRB5_BAD_MSIZE);
-
-    switch (mit_des3_key_sched(*(mit_des3_cblock *)key->contents,
-			       *schedule)) {
-    case -1:
-	return(KRB5DES_BAD_KEYPAR);
-    case -2:
-	return(KRB5DES_WEAK_KEY);
-    }
-    return 0;
-}
-
-static krb5_error_code
-validate_and_schedule_iov(const krb5_keyblock *key, const krb5_data *ivec,
-			  const krb5_crypto_iov *data, size_t num_data,
-			  mit_des3_key_schedule *schedule)
-{
-    size_t i, input_length;
-
-    for (i = 0, input_length = 0; i < num_data; i++) {
-	const krb5_crypto_iov *iov = &data[i];
-
-	if (ENCRYPT_IOV(iov))
-	    input_length += iov->data.length;
-    }
-
-    if (key->length != 24)
-	return(KRB5_BAD_KEYSIZE);
-    if ((input_length%8) != 0)
-	return(KRB5_BAD_MSIZE);
-    if (ivec && (ivec->length != 8))
-	return(KRB5_BAD_MSIZE);
-
-    switch (mit_des3_key_sched(*(mit_des3_cblock *)key->contents,
-			       *schedule)) {
-    case -1:
-	return(KRB5DES_BAD_KEYPAR);
-    case -2:
-	return(KRB5DES_WEAK_KEY);
-    }
-    return 0;
-}
-
-static krb5_error_code
-k5_des3_encrypt(const krb5_keyblock *key, const krb5_data *ivec,
-		const krb5_data *input, krb5_data *output)
-{
-    mit_des3_key_schedule schedule;
-    krb5_error_code err;
-
-    err = validate_and_schedule(key, ivec, input, output, &schedule);
-    if (err)
-	return err;
-
-    /* this has a return value, but the code always returns zero */
-    krb5int_des3_cbc_encrypt((krb5_pointer) input->data,
-			     (krb5_pointer) output->data, input->length,
-			     schedule[0], schedule[1], schedule[2],
-			     ivec?(const unsigned char *) ivec->data:(const unsigned char *)mit_des_zeroblock);
-
-    zap(schedule, sizeof(schedule));
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des3_decrypt(const krb5_keyblock *key, const krb5_data *ivec,
-		const krb5_data *input, krb5_data *output)
-{
-    mit_des3_key_schedule schedule;
-    krb5_error_code err;
-
-    err = validate_and_schedule(key, ivec, input, output, &schedule);
-    if (err)
-	return err;
-
-    /* this has a return value, but the code always returns zero */
-    krb5int_des3_cbc_decrypt((krb5_pointer) input->data,
-			     (krb5_pointer) output->data, input->length,
-			     schedule[0], schedule[1], schedule[2],
-			     ivec?(const unsigned char *) ivec->data:(const unsigned char *)mit_des_zeroblock);
-
-    zap(schedule, sizeof(schedule));
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des3_make_key(const krb5_data *randombits, krb5_keyblock *key)
-{
-    int i;
-
-    if (key->length != 24)
-	return(KRB5_BAD_KEYSIZE);
-    if (randombits->length != 21)
-	return(KRB5_CRYPTO_INTERNAL);
-
-    key->magic = KV5M_KEYBLOCK;
-    key->length = 24;
-
-    /* take the seven bytes, move them around into the top 7 bits of the
-       8 key bytes, then compute the parity bits.  Do this three times. */
-
-    for (i=0; i<3; i++) {
-	memcpy(key->contents+i*8, randombits->data+i*7, 7);
-	key->contents[i*8+7] = (((key->contents[i*8]&1)<<1) |
-				((key->contents[i*8+1]&1)<<2) |
-				((key->contents[i*8+2]&1)<<3) |
-				((key->contents[i*8+3]&1)<<4) |
-				((key->contents[i*8+4]&1)<<5) |
-				((key->contents[i*8+5]&1)<<6) |
-				((key->contents[i*8+6]&1)<<7));
-
-	mit_des_fixup_key_parity(key->contents+i*8);
-    }
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des3_encrypt_iov(const krb5_keyblock *key,
-		    const krb5_data *ivec,
-		    krb5_crypto_iov *data,
-		    size_t num_data)
-{
-    mit_des3_key_schedule schedule;
-    krb5_error_code err;
-
-    err = validate_and_schedule_iov(key, ivec, data, num_data, &schedule);
-    if (err)
-	return err;
-
-    /* this has a return value, but the code always returns zero */
-    krb5int_des3_cbc_encrypt_iov(data, num_data,
-			     schedule[0], schedule[1], schedule[2],
-			     ivec != NULL ? (unsigned char *) ivec->data : NULL);
-
-    zap(schedule, sizeof(schedule));
-
-    return(0);
-}
-
-static krb5_error_code
-k5_des3_decrypt_iov(const krb5_keyblock *key,
-		    const krb5_data *ivec,
-		    krb5_crypto_iov *data,
-		    size_t num_data)
-{
-    mit_des3_key_schedule schedule;
-    krb5_error_code err;
-
-    err = validate_and_schedule_iov(key, ivec, data, num_data, &schedule);
-    if (err)
-	return err;
-
-    /* this has a return value, but the code always returns zero */
-    krb5int_des3_cbc_decrypt_iov(data, num_data,
-				 schedule[0], schedule[1], schedule[2],
-				 ivec != NULL ? (unsigned char *) ivec->data : NULL);
-
-    zap(schedule, sizeof(schedule));
-
-    return(0);
-}
-
-const struct krb5_enc_provider krb5int_enc_des3 = {
-    8,
-    21, 24,
-    k5_des3_encrypt,
-    k5_des3_decrypt,
-    k5_des3_make_key,
-    krb5int_des_init_state,
-    krb5int_default_free_state,
-    k5_des3_encrypt_iov,
-    k5_des3_decrypt_iov
-};
-
diff --git a/src/lib/crypto/krb/enc_provider/enc_provider.h b/src/lib/crypto/krb/enc_provider/enc_provider.h
deleted file mode 100644
index 92022b3..0000000
--- a/src/lib/crypto/krb/enc_provider/enc_provider.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 1998 by the FundsXpress, INC.
- * 
- * All rights reserved.
- * 
- * Export of this software from the United States of America may require
- * a specific license from the United States Government.  It is the
- * responsibility of any person or organization contemplating export to
- * obtain such a license before exporting.
- * 
- * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
- * distribute this software and its documentation for any purpose and
- * without fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright notice and
- * this permission notice appear in supporting documentation, and that
- * the name of FundsXpress. not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission.  FundsXpress makes no representations about the suitability of
- * this software for any purpose.  It is provided "as is" without express
- * or implied warranty.
- * 
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#include "k5-int.h"
-
-extern const struct krb5_enc_provider krb5int_enc_des;
-extern const struct krb5_enc_provider krb5int_enc_des3;
-extern const struct krb5_enc_provider krb5int_enc_arcfour;
-extern const struct krb5_enc_provider krb5int_enc_aes128;
-extern const struct krb5_enc_provider krb5int_enc_aes256;
-extern const struct krb5_enc_provider krb5int_enc_aes128_ctr;
-extern const struct krb5_enc_provider krb5int_enc_aes256_ctr;
-
diff --git a/src/lib/crypto/krb/enc_provider/rc4.c b/src/lib/crypto/krb/enc_provider/rc4.c
deleted file mode 100644
index b950a60..0000000
--- a/src/lib/crypto/krb/enc_provider/rc4.c
+++ /dev/null
@@ -1,271 +0,0 @@
-/* arcfour.c 
- *
- * Copyright (c) 2000 by Computer Science Laboratory,
- *                       Rensselaer Polytechnic Institute
- *
- * #include STD_DISCLAIMER
- */
-
-#include "k5-int.h"
-#include "arcfour-int.h"
-#include "enc_provider.h"
-#include "../aead.h"
-/* gets the next byte from the PRNG */
-#if ((__GNUC__ >= 2) )
-static __inline__ unsigned int k5_arcfour_byte(ArcfourContext *);
-#else
-static unsigned int k5_arcfour_byte(ArcfourContext *);
-#endif /* gcc inlines*/
-
-/* Initializes the context and sets the key. */
-static krb5_error_code k5_arcfour_init(ArcfourContext *ctx, const unsigned char *key, 
-		  unsigned int keylen);
-
-/* Encrypts/decrypts data. */
-static void k5_arcfour_crypt(ArcfourContext *ctx, unsigned char *dest, 
-		     const unsigned char *src, unsigned int len);
-
-/* Interface layer to kerb5 crypto layer */
-static krb5_error_code
-k5_arcfour_docrypt(const krb5_keyblock *, const krb5_data *,
-		   const krb5_data *, krb5_data *);
-
-/* from a random bitstrem, construct a key */
-static krb5_error_code
-k5_arcfour_make_key(const krb5_data *, krb5_keyblock *);
-
-static const unsigned char arcfour_weakkey1[] = {0x00, 0x00, 0xfd};
-static const unsigned char arcfour_weakkey2[] = {0x03, 0xfd, 0xfc};
-static const struct {
-    size_t length;
-    const unsigned char *data;
-} arcfour_weakkeys[] = {
-    { sizeof (arcfour_weakkey1), arcfour_weakkey1},
-    { sizeof (arcfour_weakkey2), arcfour_weakkey2},
-};
-
-static inline unsigned int k5_arcfour_byte(ArcfourContext * ctx)
-{
-  unsigned int x;
-  unsigned int y;
-  unsigned int sx, sy;
-  unsigned char *state;
-
-  state = ctx->state;
-  x = (ctx->x + 1) & 0xff;
-  sx = state[x];
-  y = (sx + ctx->y) & 0xff;
-  sy = state[y];
-  ctx->x = x;
-  ctx->y = y;
-  state[y] = sx;
-  state[x] = sy;
-  return state[(sx + sy) & 0xff];
-}
-
-static void k5_arcfour_crypt(ArcfourContext *ctx, unsigned char *dest, 
-		     const unsigned char *src, unsigned int len)
-{
-  unsigned int i;
-  for (i = 0; i < len; i++)
-    dest[i] = src[i] ^ k5_arcfour_byte(ctx);
-}
-
-
-static krb5_error_code
-k5_arcfour_init(ArcfourContext *ctx, const unsigned char *key, 
-		  unsigned int key_len)
-{
-  unsigned int t, u;
-  unsigned int keyindex;
-  unsigned int stateindex;
-  unsigned char* state;
-  unsigned int counter;
-
-  if (key_len != 16)
-    return KRB5_BAD_MSIZE;     /*this is probably not the correct error code
-				 to return */
-  for (counter=0;
-       counter < sizeof(arcfour_weakkeys)/sizeof(arcfour_weakkeys[0]);
-       counter++)
-      if (!memcmp(key, arcfour_weakkeys[counter].data,
-		  arcfour_weakkeys[counter].length))
-	  return KRB5DES_WEAK_KEY; /* most certainly not the correct error */
-
-  state = &ctx->state[0];
-  ctx->x = 0;
-  ctx->y = 0;
-  for (counter = 0; counter < 256; counter++)
-    state[counter] = counter;
-  keyindex = 0;
-  stateindex = 0;
-  for (counter = 0; counter < 256; counter++)
-    {
-      t = state[counter];
-      stateindex = (stateindex + key[keyindex] + t) & 0xff;
-      u = state[stateindex];
-      state[stateindex] = t;
-      state[counter] = u;
-      if (++keyindex >= key_len)
-	keyindex = 0;
-    }
-  return 0;
-}
-
-
-/* The workhorse of the arcfour system, this impliments the cipher */
-static krb5_error_code
-k5_arcfour_docrypt(const krb5_keyblock *key, const krb5_data *state,
-	       const krb5_data *input, krb5_data *output)
-{
-  ArcfourContext *arcfour_ctx;
-  ArcFourCipherState *cipher_state;
-  int ret;
-
-  if (key->length != 16)
-    return(KRB5_BAD_KEYSIZE);
-  if (state && (state->length != sizeof (ArcFourCipherState)))
-    return(KRB5_BAD_MSIZE);
-  if (input->length != output->length)
-    return(KRB5_BAD_MSIZE);
-
-  if (state) {
-    cipher_state = (ArcFourCipherState *) state->data;
-    arcfour_ctx=&cipher_state->ctx;
-    if (cipher_state->initialized == 0) {
-      if ((ret=k5_arcfour_init(arcfour_ctx, key->contents, key->length))) {
-	return ret;
-      }
-      cipher_state->initialized = 1;
-    }
-    k5_arcfour_crypt(arcfour_ctx, (unsigned char *) output->data, (const unsigned char *) input->data, input->length);
-  }
-  else {
-    arcfour_ctx=malloc(sizeof (ArcfourContext));
-    if (arcfour_ctx == NULL)
-      return ENOMEM;
-    if ((ret=k5_arcfour_init(arcfour_ctx, key->contents, key->length))) {
-      free(arcfour_ctx);
-      return (ret);
-    }
-    k5_arcfour_crypt(arcfour_ctx, (unsigned char * ) output->data,
-		     (const unsigned char * ) input->data, input->length);
-    memset(arcfour_ctx, 0, sizeof (ArcfourContext));
-    free(arcfour_ctx);
-  }
-  
-  return 0;
-}
-
-/* In-place encryption */
-static krb5_error_code
-k5_arcfour_docrypt_iov(const krb5_keyblock *key,
-		       const krb5_data *state,
-		       krb5_crypto_iov *data,
-		       size_t num_data)
-{
-    ArcfourContext *arcfour_ctx = NULL;
-    ArcFourCipherState *cipher_state = NULL;
-    krb5_error_code ret;
-    size_t i;
-
-    if (key->length != 16)
-	return KRB5_BAD_KEYSIZE;
-    if (state != NULL && (state->length != sizeof(ArcFourCipherState)))
-	return KRB5_BAD_MSIZE;
-
-    if (state != NULL) {
-	cipher_state = (ArcFourCipherState *)state->data;
-	arcfour_ctx = &cipher_state->ctx;
-	if (cipher_state->initialized == 0) {
-	    ret = k5_arcfour_init(arcfour_ctx, key->contents, key->length);
-	    if (ret != 0)
-		return ret;
-
-	    cipher_state->initialized = 1;
-	}
-    } else {
-	arcfour_ctx = (ArcfourContext *)malloc(sizeof(ArcfourContext));
-	if (arcfour_ctx == NULL)
-	    return ENOMEM;
-
-	ret = k5_arcfour_init(arcfour_ctx, key->contents, key->length);
-	if (ret != 0) {
-	    free(arcfour_ctx);
-	    return ret;
-	}
-    }
-
-    for (i = 0; i < num_data; i++) {
-	krb5_crypto_iov *iov = &data[i];
-
-	if (ENCRYPT_IOV(iov))
-	    k5_arcfour_crypt(arcfour_ctx, (unsigned char *)iov->data.data,
-			     (const unsigned char *)iov->data.data, iov->data.length);
-    }
-
-    if (state == NULL) {
-	memset(arcfour_ctx, 0, sizeof(ArcfourContext));
-	free(arcfour_ctx);
-    }
-
-    return 0;
-}
-
-static krb5_error_code
-k5_arcfour_make_key(const krb5_data *randombits, krb5_keyblock *key)
-{
-    if (key->length != 16)
-	return(KRB5_BAD_KEYSIZE);
-    if (randombits->length != 16)
-	return(KRB5_CRYPTO_INTERNAL);
-
-    key->magic = KV5M_KEYBLOCK;
-    key->length = 16;
-
-    memcpy(key->contents, randombits->data, randombits->length);
-
-    return(0);
-}
-
-static krb5_error_code
-k5_arcfour_init_state (const krb5_keyblock *key,
-		       krb5_keyusage keyusage, krb5_data *new_state)
-{
-  /* Note that we can't actually set up the state here  because the key
-   * will change  between now and when encrypt is called
-   * because  it is data dependent.  Yeah, this has strange
-   * properties. --SDH
-   */
-  new_state->length = sizeof (ArcFourCipherState);
-  new_state->data = malloc (new_state->length);
-  if (new_state->data) {
-    memset (new_state->data, 0 , new_state->length);
-    /* That will set initialized to zero*/
-  }else {
-    return (ENOMEM);
-  }
-  return 0;
-}
-
-/* Since the arcfour cipher is identical going forwards and backwards, 
-   we just call "docrypt" directly
-*/
-const struct krb5_enc_provider krb5int_enc_arcfour = {
-    /* This seems to work... although I am not sure what the
-       implications are in other places in the kerberos library */
-    1,
-    /* Keysize is arbitrary in arcfour, but the constraints of the
-       system, and to attempt to work with the MSFT system forces us
-       to 16byte/128bit.  Since there is no parity in the key, the
-       byte and length are the same.  */
-    16, 16,
-    k5_arcfour_docrypt,
-    k5_arcfour_docrypt,
-    k5_arcfour_make_key,
-    k5_arcfour_init_state, /*xxx not implemented yet*/
-    krb5int_default_free_state,
-    k5_arcfour_docrypt_iov,
-    k5_arcfour_docrypt_iov
-};
-