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authorDr. Stephen Henson <steve@openssl.org>2011-01-25 17:35:10 +0000
committerDr. Stephen Henson <steve@openssl.org>2011-01-25 17:35:10 +0000
commit72a267331a603c925fae337e508d013eb0103c5e (patch)
tree62d0ecca98465e638eb850afc948edca55eece20 /crypto/rsa/rsa_lib.c
parent13a5519208f03403543d26ee46cdfab09394e171 (diff)
Move RSA encryption functions to new file crypto/rsa/rsa_crpt.c to separate
crypto and ENGINE dependencies in RSA library.
Diffstat (limited to 'crypto/rsa/rsa_lib.c')
-rw-r--r--crypto/rsa/rsa_lib.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index de45088d76..3225570671 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -280,163 +280,6 @@ void *RSA_get_ex_data(const RSA *r, int idx)
return(CRYPTO_get_ex_data(&r->ex_data,idx));
}
-int RSA_size(const RSA *r)
- {
- return(BN_num_bytes(r->n));
- }
-
-int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
- RSA *rsa, int padding)
- {
- return(rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding));
- }
-
-int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
- RSA *rsa, int padding)
- {
- return(rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding));
- }
-
-int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
- RSA *rsa, int padding)
- {
- return(rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding));
- }
-
-int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
- RSA *rsa, int padding)
- {
- return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding));
- }
-
-int RSA_flags(const RSA *r)
- {
- return((r == NULL)?0:r->meth->flags);
- }
-
-void RSA_blinding_off(RSA *rsa)
- {
- if (rsa->blinding != NULL)
- {
- BN_BLINDING_free(rsa->blinding);
- rsa->blinding=NULL;
- }
- rsa->flags &= ~RSA_FLAG_BLINDING;
- rsa->flags |= RSA_FLAG_NO_BLINDING;
- }
-
-int RSA_blinding_on(RSA *rsa, BN_CTX *ctx)
- {
- int ret=0;
-
- if (rsa->blinding != NULL)
- RSA_blinding_off(rsa);
-
- rsa->blinding = RSA_setup_blinding(rsa, ctx);
- if (rsa->blinding == NULL)
- goto err;
-
- rsa->flags |= RSA_FLAG_BLINDING;
- rsa->flags &= ~RSA_FLAG_NO_BLINDING;
- ret=1;
-err:
- return(ret);
- }
-
-static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p,
- const BIGNUM *q, BN_CTX *ctx)
-{
- BIGNUM *ret = NULL, *r0, *r1, *r2;
-
- if (d == NULL || p == NULL || q == NULL)
- return NULL;
-
- BN_CTX_start(ctx);
- r0 = BN_CTX_get(ctx);
- r1 = BN_CTX_get(ctx);
- r2 = BN_CTX_get(ctx);
- if (r2 == NULL)
- goto err;
-
- if (!BN_sub(r1, p, BN_value_one())) goto err;
- if (!BN_sub(r2, q, BN_value_one())) goto err;
- if (!BN_mul(r0, r1, r2, ctx)) goto err;
-
- ret = BN_mod_inverse(NULL, d, r0, ctx);
-err:
- BN_CTX_end(ctx);
- return ret;
-}
-
-BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
-{
- BIGNUM local_n;
- BIGNUM *e,*n;
- BN_CTX *ctx;
- BN_BLINDING *ret = NULL;
-
- if (in_ctx == NULL)
- {
- if ((ctx = BN_CTX_new()) == NULL) return 0;
- }
- else
- ctx = in_ctx;
-
- BN_CTX_start(ctx);
- e = BN_CTX_get(ctx);
- if (e == NULL)
- {
- RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (rsa->e == NULL)
- {
- e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
- if (e == NULL)
- {
- RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);
- goto err;
- }
- }
- else
- e = rsa->e;
-
-
- if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL)
- {
- /* if PRNG is not properly seeded, resort to secret
- * exponent as unpredictable seed */
- RAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0);
- }
-
- if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME))
- {
- /* Set BN_FLG_CONSTTIME flag */
- n = &local_n;
- BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);
- }
- else
- n = rsa->n;
-
- ret = BN_BLINDING_create_param(NULL, e, n, ctx,
- rsa->meth->bn_mod_exp, rsa->_method_mod_n);
- if (ret == NULL)
- {
- RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
- goto err;
- }
- CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret));
-err:
- BN_CTX_end(ctx);
- if (in_ctx == NULL)
- BN_CTX_free(ctx);
- if(rsa->e == NULL)
- BN_free(e);
-
- return ret;
-}
-
int RSA_memory_lock(RSA *r)
{
int i,j,k,off;