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-rw-r--r--src/lib/crypto/builtin/aes/aes-gen.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/src/lib/crypto/builtin/aes/aes-gen.c b/src/lib/crypto/builtin/aes/aes-gen.c
new file mode 100644
index 0000000..855e6a4
--- /dev/null
+++ b/src/lib/crypto/builtin/aes/aes-gen.c
@@ -0,0 +1,326 @@
+/*
+ * To be compiled against the AES code from:
+ * http://fp.gladman.plus.com/cryptography_technology/rijndael/index.htm
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "aes.h"
+
+#define B 16U
+unsigned char key[16];
+unsigned char test_case_len[] = { B+1, 2*B-1, 2*B, 2*B+1, 3*B-1, 3*B, 4*B, };
+#define NTESTS (sizeof(test_case_len))
+struct {
+ unsigned char ivec[16];
+ unsigned char input[4*16];
+ unsigned char output[4*16];
+} test_case[NTESTS];
+aes_ctx ctx, dctx;
+
+static void init ()
+{
+ int i, j, r;
+
+ srand(42);
+ for (i = 0; i < 16; i++)
+ key[i] = 0xff & rand();
+ memset(test_case, 0, sizeof(test_case));
+ for (i = 0; i < NTESTS; i++)
+ for (j = 0; j < test_case_len[i]; j++) {
+ test_case[i].input[j] = 0xff & rand();
+ }
+
+ r = aes_enc_key (key, sizeof(key), &ctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ r = aes_dec_key (key, sizeof(key), &dctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+}
+
+static void hexdump(const unsigned char *ptr, size_t len)
+{
+ int i;
+ for (i = 0; i < len; i++)
+ printf ("%s%02X", (i % 16 == 0) ? "\n " : " ", ptr[i]);
+}
+
+static void fips_test ()
+{
+ static const unsigned char fipskey[16] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ };
+ static const unsigned char input[16] = {
+ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+ 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
+ };
+ static const unsigned char expected[16] = {
+ 0x69, 0xc4, 0xe0, 0xd8, 0x6a, 0x7b, 0x04, 0x30,
+ 0xd8, 0xcd, 0xb7, 0x80, 0x70, 0xb4, 0xc5, 0x5a,
+ };
+ unsigned char output[16];
+ unsigned char tmp[16];
+ aes_ctx fipsctx;
+ int r;
+
+ printf ("FIPS test:\nkey:");
+ hexdump (fipskey, 16);
+ printf ("\ninput:");
+ hexdump (input, 16);
+ r = aes_enc_key (fipskey, sizeof(fipskey), &fipsctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ r = aes_enc_blk (input, output, &fipsctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ printf ("\noutput:");
+ hexdump (output, 16);
+ printf ("\n");
+ if (memcmp(expected, output, 16))
+ fprintf(stderr, "wrong results!!!\n"), exit (1);
+ r = aes_dec_key (fipskey, sizeof(fipskey), &fipsctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ r = aes_dec_blk (output, tmp, &fipsctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ if (memcmp(input, tmp, 16))
+ fprintf(stderr, "decryption failed!!\n"), exit(1);
+ printf ("ok.\n\n");
+}
+
+static void
+xor (unsigned char *out, const unsigned char *a, const unsigned char *b)
+{
+ int i;
+ for (i = 0; i < B; i++)
+ out[i] = a[i] ^ b[i];
+}
+
+static void
+ecb_enc (unsigned char *out, unsigned char *in, unsigned int len)
+{
+ int i, r;
+ for (i = 0; i < len; i += 16) {
+ r = aes_enc_blk (in + i, out + i, &ctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ }
+ if (i != len) abort ();
+}
+
+static void
+ecb_dec (unsigned char *out, unsigned char *in, unsigned int len)
+{
+ int i, r;
+ for (i = 0; i < len; i += 16) {
+ r = aes_dec_blk (in + i, out + i, &dctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ }
+ if (i != len) abort ();
+}
+
+#define D(X) (printf("%s %d: %s=",__FUNCTION__,__LINE__, #X),hexdump(X,B),printf("\n"))
+
+#undef D
+#define D(X)
+
+static void
+cbc_enc (unsigned char *out, unsigned char *in, unsigned char *iv,
+ unsigned int len)
+{
+ int i, r;
+ unsigned char tmp[B];
+ D(iv);
+ memcpy (tmp, iv, B);
+ for (i = 0; i < len; i += B) {
+ D(in+i);
+ xor (tmp, tmp, in + i);
+ D(tmp);
+ r = aes_enc_blk (tmp, out + i, &ctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ memcpy (tmp, out + i, B);
+ D(out+i);
+ }
+ if (i != len) abort ();
+}
+
+static void
+cbc_dec (unsigned char *out, unsigned char *in, unsigned char *iv,
+ unsigned int len)
+{
+ int i, r;
+ unsigned char tmp[B];
+ memcpy (tmp, iv, B);
+ for (i = 0; i < len; i += B) {
+ r = aes_dec_blk (in + i, tmp, &dctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ xor (tmp, tmp, iv);
+ iv = in + i;
+ memcpy (out + i, tmp, B);
+ }
+ if (i != len) abort ();
+}
+
+static void
+cts_enc (unsigned char *out, unsigned char *in, unsigned char *iv,
+ unsigned int len)
+{
+ int r;
+ unsigned int len2;
+ unsigned char pn1[B], pn[B], cn[B], cn1[B];
+
+ if (len < B + 1) abort ();
+ len2 = (len - B - 1) & ~(B-1);
+ cbc_enc (out, in, iv, len2);
+ out += len2;
+ in += len2;
+ len -= len2;
+ if (len2)
+ iv = out - B;
+ if (len <= B || len > 2 * B)
+ abort ();
+ printf ("(did CBC mode for %d)\n", len2);
+
+ D(in);
+ xor (pn1, in, iv);
+ D(pn1);
+ r = aes_enc_blk (pn1, cn, &ctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ D(cn);
+ memset (pn, 0, sizeof(pn));
+ memcpy (pn, in+B, len-B);
+ D(pn);
+ xor (pn, pn, cn);
+ D(pn);
+ r = aes_enc_blk (pn, cn1, &ctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ D(cn1);
+ memcpy(out, cn1, B);
+ memcpy(out+B, cn, len-B);
+}
+
+static void
+cts_dec (unsigned char *out, unsigned char *in, unsigned char *iv,
+ unsigned int len)
+{
+ int r;
+ unsigned int len2;
+ unsigned char pn1[B], pn[B], cn[B], cn1[B];
+
+ if (len < B + 1) abort ();
+ len2 = (len - B - 1) & ~(B-1);
+ cbc_dec (out, in, iv, len2);
+ out += len2;
+ in += len2;
+ len -= len2;
+ if (len2)
+ iv = in - B;
+ if (len <= B || len > 2 * B)
+ abort ();
+
+ memcpy (cn1, in, B);
+ r = aes_dec_blk (cn1, pn, &dctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ memset (cn, 0, sizeof(cn));
+ memcpy (cn, in+B, len-B);
+ xor (pn, pn, cn);
+ memcpy (cn+len-B, pn+len-B, 2*B-len);
+ r = aes_dec_blk (cn, pn1, &dctx);
+ if (!r) fprintf(stderr, "error, line %d\n", __LINE__), exit(1);
+ xor (pn1, pn1, iv);
+ memcpy(out, pn1, B);
+ memcpy(out+B, pn, len-B);
+}
+
+static void ecb_test ()
+{
+ int testno;
+ unsigned char tmp[4*B];
+
+ printf ("ECB tests:\n");
+ printf ("key:");
+ hexdump (key, sizeof(key));
+ for (testno = 0; testno < NTESTS; testno++) {
+ unsigned len = (test_case_len[testno] + 15) & ~15;
+ printf ("\ntest %d - %d bytes\n", testno, len);
+ printf ("input:");
+ hexdump (test_case[testno].input, len);
+ printf ("\n");
+ ecb_enc (test_case[testno].output, test_case[testno].input, len);
+ printf ("output:");
+ hexdump (test_case[testno].output, len);
+ printf ("\n");
+ ecb_dec (tmp, test_case[testno].output, len);
+ if (memcmp (tmp, test_case[testno].input, len)) {
+ printf ("ecb decrypt failed!!");
+ hexdump (tmp, len);
+ printf ("\n");
+ exit (1);
+ }
+ }
+ printf ("\n");
+}
+
+unsigned char ivec[16] = { 0 };
+
+static void cbc_test ()
+{
+ int testno;
+ unsigned char tmp[4*B];
+
+ printf ("CBC tests:\n");
+ printf ("initial vector:");
+ hexdump (ivec, sizeof(ivec));
+ for (testno = 0; testno < NTESTS; testno++) {
+ unsigned len = (test_case_len[testno] + 15) & ~15;
+ printf ("\ntest %d - %d bytes\n", testno, len);
+ printf ("input:");
+ hexdump (test_case[testno].input, len);
+ printf ("\n");
+ cbc_enc (test_case[testno].output, test_case[testno].input, ivec, len);
+ printf ("output:");
+ hexdump (test_case[testno].output, len);
+ printf ("\n");
+ cbc_dec (tmp, test_case[testno].output, ivec, len);
+ if (memcmp (tmp, test_case[testno].input, len)) {
+ printf("cbc decrypt failed!!");
+ hexdump (tmp, len);
+ printf ("\n");
+ exit(1);
+ }
+ }
+ printf ("\n");
+}
+
+static void cts_test ()
+{
+ int testno;
+ unsigned char tmp[4*B];
+
+ printf ("CTS tests:\n");
+ printf ("initial vector:");
+ hexdump (ivec, sizeof(ivec));
+ for (testno = 0; testno < NTESTS; testno++) {
+ unsigned int len = test_case_len[testno];
+ printf ("\ntest %d - %d bytes\n", testno, len);
+ printf ("input:");
+ hexdump (test_case[testno].input, len);
+ printf ("\n");
+ cts_enc (test_case[testno].output, test_case[testno].input, ivec, len);
+ printf ("output:");
+ hexdump (test_case[testno].output, len);
+ printf ("\n");
+ cts_dec (tmp, test_case[testno].output, ivec, len);
+ if (memcmp (tmp, test_case[testno].input, len))
+ fprintf (stderr, "cts decrypt failed!!\n"), exit(1);
+ }
+ printf ("\n");
+}
+
+int main ()
+{
+ init ();
+ fips_test ();
+
+ ecb_test();
+ cbc_test();
+ cts_test();
+
+ return 0;
+}
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