diff options
Diffstat (limited to 'crypto/rsa/rsa_lib.c')
| -rw-r--r-- | crypto/rsa/rsa_lib.c | 100 |
1 files changed, 97 insertions, 3 deletions
diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c index c49d0ee0c3..95a56f8a28 100644 --- a/crypto/rsa/rsa_lib.c +++ b/crypto/rsa/rsa_lib.c @@ -1,5 +1,5 @@ /* crypto/rsa/rsa_lib.c */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written @@ -57,13 +57,17 @@ */ #include <stdio.h> +#include "crypto.h" #include "cryptlib.h" +#include "lhash.h" #include "bn.h" #include "rsa.h" -char *RSA_version="RSA part of SSLeay 0.8.1b 29-Jun-1998"; +char *RSA_version="RSA part of SSLeay 0.9.0b 29-Jun-1998"; static RSA_METHOD *default_RSA_meth=NULL; +static int rsa_meth_num=0; +static STACK *rsa_meth=NULL; RSA *RSA_new() { @@ -112,12 +116,17 @@ RSA_METHOD *meth; ret->dmq1=NULL; ret->iqmp=NULL; ret->references=1; - ret->app_data=NULL; + ret->method_mod_n=NULL; + ret->method_mod_p=NULL; + ret->method_mod_q=NULL; + ret->blinding=NULL; + ret->flags=ret->meth->flags; if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { Free(ret); ret=NULL; } + CRYPTO_new_ex_data(rsa_meth,(char *)ret,&ret->ex_data); return(ret); } @@ -129,6 +138,9 @@ RSA *r; if (r == NULL) return; i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA); +#ifdef REF_PRINT + REF_PRINT("RSA",r); +#endif if (i > 0) return; #ifdef REF_CHECK if (i < 0) @@ -138,6 +150,8 @@ RSA *r; } #endif + CRYPTO_free_ex_data(rsa_meth,(char *)r,&r->ex_data); + if (r->meth->finish != NULL) r->meth->finish(r); @@ -149,9 +163,37 @@ RSA *r; if (r->dmp1 != NULL) BN_clear_free(r->dmp1); if (r->dmq1 != NULL) BN_clear_free(r->dmq1); if (r->iqmp != NULL) BN_clear_free(r->iqmp); + if (r->blinding != NULL) BN_BLINDING_free(r->blinding); Free(r); } +int RSA_get_ex_new_index(argl,argp,new_func,dup_func,free_func) +long argl; +char *argp; +int (*new_func)(); +int (*dup_func)(); +void (*free_func)(); + { + rsa_meth_num++; + return(CRYPTO_get_ex_new_index(rsa_meth_num-1, + &rsa_meth,argl,argp,new_func,dup_func,free_func)); + } + +int RSA_set_ex_data(r,idx,arg) +RSA *r; +int idx; +char *arg; + { + return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); + } + +char *RSA_get_ex_data(r,idx) +RSA *r; +int idx; + { + return(CRYPTO_get_ex_data(&r->ex_data,idx)); + } + int RSA_size(r) RSA *r; { @@ -198,3 +240,55 @@ int padding; return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding)); } +int RSA_flags(r) +RSA *r; + { + return((r == NULL)?0:r->meth->flags); + } + +void RSA_blinding_off(rsa) +RSA *rsa; + { + if (rsa->blinding != NULL) + { + BN_BLINDING_free(rsa->blinding); + rsa->blinding=NULL; + } + rsa->flags&= ~RSA_FLAG_BLINDING; + } + +int RSA_blinding_on(rsa,p_ctx) +RSA *rsa; +BN_CTX *p_ctx; + { + BIGNUM *A,*Ai; + BN_CTX *ctx; + int ret=0; + + if (p_ctx == NULL) + { + if ((ctx=BN_CTX_new()) == NULL) goto err; + } + else + ctx=p_ctx; + + if (rsa->blinding != NULL) + BN_BLINDING_free(rsa->blinding); + + A=ctx->bn[0]; + ctx->tos++; + if (!BN_rand(A,BN_num_bits(rsa->n)-1,1,0)) goto err; + if ((Ai=BN_mod_inverse(A,rsa->n,ctx)) == NULL) goto err; + + if (!rsa->meth->bn_mod_exp(A,A,rsa->e,rsa->n,ctx, + (char *)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: + if (ctx != p_ctx) BN_CTX_free(ctx); + return(ret); + } + |