static int pkey_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
RSA *rsa = NULL;
RSA_PKEY_CTX *rctx = ctx->data;
BN_GENCB *pcb, cb;
int ret;
if (!rctx->pub_exp)
{
rctx->pub_exp = BN_new();
if (!rctx->pub_exp || !BN_set_word(rctx->pub_exp, RSA_F4))
return 0;
}
rsa = RSA_new();
if (!rsa)
return 0;
if (ctx->pkey_gencb)
{
pcb = &cb;
evp_pkey_set_cb_translate(pcb, ctx);
}
else
pcb = NULL;
ret = RSA_generate_key_ex(rsa, rctx->nbits, rctx->pub_exp, pcb);
if (ret > 0)
EVP_PKEY_assign_RSA(pkey, rsa);
else
RSA_free(rsa);
return ret;
}
static int pkey_dsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
DSA *dsa = NULL;
DSA_PKEY_CTX *dctx = ctx->data;
BN_GENCB *pcb;
int ret;
if (ctx->pkey_gencb) {
pcb = BN_GENCB_new();
if (pcb == NULL)
return 0;
evp_pkey_set_cb_translate(pcb, ctx);
} else
pcb = NULL;
dsa = DSA_new();
if (dsa == NULL) {
BN_GENCB_free(pcb);
return 0;
}
ret = dsa_builtin_paramgen(dsa, dctx->nbits, dctx->qbits, dctx->pmd,
NULL, 0, NULL, NULL, NULL, pcb);
BN_GENCB_free(pcb);
if (ret)
EVP_PKEY_assign_DSA(pkey, dsa);
else
DSA_free(dsa);
return ret;
}
static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
DH *dh = NULL;
DH_PKEY_CTX *dctx = ctx->data;
BN_GENCB *pcb, cb;
int ret;
if (dctx->rfc5114_param) {
switch (dctx->rfc5114_param) {
case 1:
dh = DH_get_1024_160();
break;
case 2:
dh = DH_get_2048_224();
break;
case 3:
dh = DH_get_2048_256();
break;
default:
return -2;
}
EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh);
return 1;
}
if (ctx->pkey_gencb) {
pcb = &cb;
evp_pkey_set_cb_translate(pcb, ctx);
} else
pcb = NULL;
#ifndef OPENSSL_NO_DSA
if (dctx->use_dsa) {
DSA *dsa_dh;
dsa_dh = dsa_dh_generate(dctx, pcb);
if (!dsa_dh)
return 0;
dh = DSA_dup_DH(dsa_dh);
DSA_free(dsa_dh);
if (!dh)
return 0;
EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh);
return 1;
}
#endif
dh = DH_new();
if (!dh)
return 0;
ret = DH_generate_parameters_ex(dh,
dctx->prime_len, dctx->generator, pcb);
if (ret)
EVP_PKEY_assign_DH(pkey, dh);
else
DH_free(dh);
return ret;
}
static int pkey_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
RSA *rsa = NULL;
RSA_PKEY_CTX *rctx = ctx->data;
BN_GENCB *pcb;
int ret;
if (rctx->pub_exp == NULL) {
rctx->pub_exp = BN_new();
if (rctx->pub_exp == NULL || !BN_set_word(rctx->pub_exp, RSA_F4))
return 0;
}
rsa = RSA_new();
if (rsa == NULL)
return 0;
if (ctx->pkey_gencb) {
pcb = BN_GENCB_new();
if (pcb == NULL) {
RSA_free(rsa);
return 0;
}
evp_pkey_set_cb_translate(pcb, ctx);
} else {
pcb = NULL;
}
ret = RSA_generate_multi_prime_key(rsa, rctx->nbits, rctx->primes,
rctx->pub_exp, pcb);
BN_GENCB_free(pcb);
if (ret > 0 && !rsa_set_pss_param(rsa, ctx)) {
RSA_free(rsa);
return 0;
}
if (ret > 0)
EVP_PKEY_assign(pkey, ctx->pmeth->pkey_id, rsa);
else
RSA_free(rsa);
return ret;
}
static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
DH *dh = NULL;
DH_PKEY_CTX *dctx = ctx->data;
BN_GENCB *pcb, cb;
int ret;
if (ctx->pkey_gencb)
{
pcb = &cb;
evp_pkey_set_cb_translate(pcb, ctx);
}
else
pcb = NULL;
dh = DH_new();
if (!dh)
return 0;
ret = DH_generate_parameters_ex(dh,
dctx->prime_len, dctx->generator, pcb);
if (ret)
EVP_PKEY_assign_DH(pkey, dh);
else
DH_free(dh);
return ret;
}
