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| author | Ulf Möller <ulf@openssl.org> | 2000-02-05 14:17:32 +0000 |
|---|---|---|
| committer | Ulf Möller <ulf@openssl.org> | 2000-02-05 14:17:32 +0000 |
| commit | 9b141126d4b6f0636bc047e81b846c193ae26611 (patch) | |
| tree | c8786c99bfccc8b9899cad5c3aa30f29ada5e1b9 /crypto/rsa | |
| parent | 7e708ebee066d0308a335579b546326220dc8317 (diff) | |
| download | openssl-9b141126d4b6f0636bc047e81b846c193ae26611.zip openssl-9b141126d4b6f0636bc047e81b846c193ae26611.tar.gz openssl-9b141126d4b6f0636bc047e81b846c193ae26611.tar.bz2 | |
New functions BN_CTX_start(), BN_CTX_get(), BN_CTX_end() to access
temporary BIGNUMs. BN_CTX still uses a fixed number of BIGNUMs, but
the BN_CTX implementation could now easily be changed.
Diffstat (limited to 'crypto/rsa')
| -rw-r--r-- | crypto/rsa/rsa_gen.c | 12 | ||||
| -rw-r--r-- | crypto/rsa/rsa_lib.c | 6 |
2 files changed, 10 insertions, 8 deletions
diff --git a/crypto/rsa/rsa_gen.c b/crypto/rsa/rsa_gen.c index 3ed6edd..95e636d 100644 --- a/crypto/rsa/rsa_gen.c +++ b/crypto/rsa/rsa_gen.c @@ -74,11 +74,12 @@ RSA *RSA_generate_key(int bits, unsigned long e_value, if (ctx == NULL) goto err; ctx2=BN_CTX_new(); if (ctx2 == NULL) goto err; - r0= &(ctx->bn[0]); - r1= &(ctx->bn[1]); - r2= &(ctx->bn[2]); - r3= &(ctx->bn[3]); - ctx->tos+=4; + BN_CTX_start(ctx); + r0 = BN_CTX_get(ctx); + r1 = BN_CTX_get(ctx); + r2 = BN_CTX_get(ctx); + r3 = BN_CTX_get(ctx); + if (r3 == NULL) goto err; bitsp=(bits+1)/2; bitsq=bits-bitsp; @@ -181,6 +182,7 @@ err: RSAerr(RSA_F_RSA_GENERATE_KEY,ERR_LIB_BN); ok=0; } + BN_CTX_end(ctx); BN_CTX_free(ctx); BN_CTX_free(ctx2); diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c index c6b1a59..074a4f5 100644 --- a/crypto/rsa/rsa_lib.c +++ b/crypto/rsa/rsa_lib.c @@ -269,19 +269,19 @@ int RSA_blinding_on(RSA *rsa, BN_CTX *p_ctx) if (rsa->blinding != NULL) BN_BLINDING_free(rsa->blinding); - A= &(ctx->bn[0]); - ctx->tos++; + BN_CTX_start(ctx); + A = BN_CTX_get(ctx); if (!BN_rand(A,BN_num_bits(rsa->n)-1,1,0)) goto err; if ((Ai=BN_mod_inverse(NULL,A,rsa->n,ctx)) == NULL) goto err; if (!rsa->meth->bn_mod_exp(A,A,rsa->e,rsa->n,ctx,rsa->_method_mod_n)) goto err; rsa->blinding=BN_BLINDING_new(A,Ai,rsa->n); - ctx->tos--; rsa->flags|=RSA_FLAG_BLINDING; BN_free(Ai); ret=1; err: + BN_CTX_end(ctx); if (ctx != p_ctx) BN_CTX_free(ctx); return(ret); } |