diff options
author | Geoff Thorpe <geoff@openssl.org> | 2004-04-26 15:31:35 +0000 |
---|---|---|
committer | Geoff Thorpe <geoff@openssl.org> | 2004-04-26 15:31:35 +0000 |
commit | bcfea9fb25738b007cfef48d5070376c4398675a (patch) | |
tree | 4c60cc4cb29540bf98072e95c712495a129cc646 /crypto/rsa | |
parent | f3f52d7f45967af4f70045921dfa12e6faedcc92 (diff) |
Allow RSA key-generation to specify an arbitrary public exponent. Jelte
proposed the change and submitted the patch, I jiggled it slightly and
adjusted the other parts of openssl that were affected.
PR: 867
Submitted by: Jelte Jansen
Reviewed by: Geoff Thorpe
Diffstat (limited to 'crypto/rsa')
-rw-r--r-- | crypto/rsa/rsa.h | 4 | ||||
-rw-r--r-- | crypto/rsa/rsa_depr.c | 28 | ||||
-rw-r--r-- | crypto/rsa/rsa_gen.c | 19 |
3 files changed, 28 insertions, 23 deletions
diff --git a/crypto/rsa/rsa.h b/crypto/rsa/rsa.h index f82d493f95..5bf862cd68 100644 --- a/crypto/rsa/rsa.h +++ b/crypto/rsa/rsa.h @@ -120,7 +120,7 @@ struct rsa_meth_st * is for behavioural compatibility whilst the code gets rewired, but one day * it would be nice to assume there are no such things as "builtin software" * implementations. */ - int (*rsa_keygen)(RSA *rsa, int bits, unsigned long e, BN_GENCB *cb); + int (*rsa_keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb); }; struct rsa_st @@ -203,7 +203,7 @@ RSA * RSA_generate_key(int bits, unsigned long e,void #endif /* !defined(OPENSSL_NO_DEPRECATED) */ /* New version */ -int RSA_generate_key_ex(RSA *rsa, int bits, unsigned long e, BN_GENCB *cb); +int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb); int RSA_check_key(const RSA *); /* next 4 return -1 on error */ diff --git a/crypto/rsa/rsa_depr.c b/crypto/rsa/rsa_depr.c index 2d87cd39f3..73fa6eea90 100644 --- a/crypto/rsa/rsa_depr.c +++ b/crypto/rsa/rsa_depr.c @@ -62,23 +62,39 @@ #include <openssl/bn.h> #include <openssl/rsa.h> +#ifdef OPENSSL_NO_DEPRECATED + static void *dummy=&dummy; -#ifndef OPENSSL_NO_DEPRECATED +#else + RSA *RSA_generate_key(int bits, unsigned long e_value, void (*callback)(int,int,void *), void *cb_arg) { BN_GENCB cb; - RSA *rsa; + int i; + RSA *rsa = RSA_new(); + BIGNUM *e = BN_new(); - if((rsa=RSA_new()) == NULL) - return 0; + if(!rsa || !e) goto err; + + /* The problem is when building with 8, 16, or 32 BN_ULONG, + * unsigned long can be larger */ + for (i=0; i<sizeof(unsigned long)*8; i++) + { + if (e_value & (1UL<<i)) + BN_set_bit(e,i); + } BN_GENCB_set_old(&cb, callback, cb_arg); - if(RSA_generate_key_ex(rsa, bits, e_value, &cb)) + if(RSA_generate_key_ex(rsa, bits, e, &cb)) { + BN_free(e); return rsa; - RSA_free(rsa); + } +err: + if(e) BN_free(e); + if(rsa) RSA_free(rsa); return 0; } #endif diff --git a/crypto/rsa/rsa_gen.c b/crypto/rsa/rsa_gen.c index 024e11b8e7..68a2661796 100644 --- a/crypto/rsa/rsa_gen.c +++ b/crypto/rsa/rsa_gen.c @@ -68,25 +68,24 @@ #include <openssl/bn.h> #include <openssl/rsa.h> -static int rsa_builtin_keygen(RSA *rsa, int bits, unsigned long e_value, BN_GENCB *cb); +static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb); /* NB: this wrapper would normally be placed in rsa_lib.c and the static * implementation would probably be in rsa_eay.c. Nonetheless, is kept here so * that we don't introduce a new linker dependency. Eg. any application that * wasn't previously linking object code related to key-generation won't have to * now just because key-generation is part of RSA_METHOD. */ -int RSA_generate_key_ex(RSA *rsa, int bits, unsigned long e_value, BN_GENCB *cb) +int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) { if(rsa->meth->rsa_keygen) return rsa->meth->rsa_keygen(rsa, bits, e_value, cb); return rsa_builtin_keygen(rsa, bits, e_value, cb); } -static int rsa_builtin_keygen(RSA *rsa, int bits, unsigned long e_value, BN_GENCB *cb) +static int rsa_builtin_keygen(RSA *rsa, int bits, BIGNUM *e_value, BN_GENCB *cb) { BIGNUM *r0=NULL,*r1=NULL,*r2=NULL,*r3=NULL,*tmp; int bitsp,bitsq,ok= -1,n=0; - unsigned int i; BN_CTX *ctx=NULL,*ctx2=NULL; ctx=BN_CTX_new(); @@ -113,17 +112,7 @@ static int rsa_builtin_keygen(RSA *rsa, int bits, unsigned long e_value, BN_GENC if(!rsa->dmq1 && ((rsa->dmq1=BN_new()) == NULL)) goto err; if(!rsa->iqmp && ((rsa->iqmp=BN_new()) == NULL)) goto err; -#if 1 - /* The problem is when building with 8, 16, or 32 BN_ULONG, - * unsigned long can be larger */ - for (i=0; i<sizeof(unsigned long)*8; i++) - { - if (e_value & (1UL<<i)) - BN_set_bit(rsa->e,i); - } -#else - if (!BN_set_word(rsa->e,e_value)) goto err; -#endif + BN_copy(rsa->e, e_value); /* generate p and q */ for (;;) |