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Add macros to determine if key or ctx is PSS.

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Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2177)
This commit is contained in:
Dr. Stephen Henson 2016-12-01 21:46:31 +00:00
parent a300c7256e
commit 87ee7b22b6
3 changed files with 10 additions and 7 deletions
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5
crypto/rsa/rsa_ameth.c
View File

@ -305,7 +305,6 @@ static int pkey_rsa_print(BIO *bp, const EVP_PKEY *pkey, int off, int priv)
char *str;
const char *s;
int ret = 0, mod_len = 0;
int is_pss = pkey->ameth->pkey_id == EVP_PKEY_RSA_PSS;
if (x->n != NULL)
mod_len = BN_num_bits(x->n);
@ -313,7 +312,7 @@ static int pkey_rsa_print(BIO *bp, const EVP_PKEY *pkey, int off, int priv)
if (!BIO_indent(bp, off, 128))
goto err;
if (BIO_printf(bp, "%s ", is_pss ? "RSA-PSS" : "RSA") <= 0)
if (BIO_printf(bp, "%s ", pkey_is_pss(pkey) ? "RSA-PSS" : "RSA") <= 0)
goto err;
if (priv && x->d) {
@ -345,7 +344,7 @@ static int pkey_rsa_print(BIO *bp, const EVP_PKEY *pkey, int off, int priv)
if (!ASN1_bn_print(bp, "coefficient:", x->iqmp, NULL, off))
goto err;
}
if (is_pss && !rsa_pss_param_print(bp, 1, x->pss, off))
if (pkey_is_pss(pkey) && !rsa_pss_param_print(bp, 1, x->pss, off))
goto err;
ret = 1;
err:

3
crypto/rsa/rsa_locl.h
View File

@ -97,6 +97,9 @@ extern int int_rsa_verify(int dtype, const unsigned char *m,
unsigned int m_len, unsigned char *rm,
size_t *prm_len, const unsigned char *sigbuf,
size_t siglen, RSA *rsa);
/* Macros to test if a pkey or ctx is for a PSS key */
#define pkey_is_pss(pkey) (pkey->ameth->pkey_id == EVP_PKEY_RSA_PSS)
#define pkey_ctx_is_pss(ctx) (ctx->pmeth->pkey_id == EVP_PKEY_RSA_PSS)
RSA_PSS_PARAMS *rsa_pss_params_create(const EVP_MD *sigmd,
const EVP_MD *mgf1md, int saltlen);

9
crypto/rsa/rsa_pmeth.c
View File

@ -49,7 +49,7 @@ static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
if (rctx == NULL)
return 0;
rctx->nbits = 1024;
if (ctx->pmeth->pkey_id == EVP_PKEY_RSA_PSS)
if (pkey_ctx_is_pss(ctx))
rctx->pad_mode = RSA_PKCS1_PSS_PADDING;
else
rctx->pad_mode = RSA_PKCS1_PADDING;
@ -388,7 +388,7 @@ static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
goto bad_pad;
if (!rctx->md)
rctx->md = EVP_sha1();
} else if (ctx->pmeth->pkey_id == EVP_PKEY_RSA_PSS) {
} else if (pkey_ctx_is_pss(ctx)) {
goto bad_pad;
}
if (p1 == RSA_PKCS1_OAEP_PADDING) {
@ -582,7 +582,7 @@ static int pkey_rsa_ctrl_str(EVP_PKEY_CTX *ctx,
EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
EVP_PKEY_CTRL_RSA_MGF1_MD, value);
if (ctx->pmeth->pkey_id == EVP_PKEY_RSA_PSS) {
if (pkey_ctx_is_pss(ctx)) {
if (strcmp(type, "rsa_pss_keygen_mgf1_md") == 0)
return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_KEYGEN,
@ -623,8 +623,9 @@ static int pkey_rsa_ctrl_str(EVP_PKEY_CTX *ctx,
static int rsa_set_pss_param(RSA *rsa, EVP_PKEY_CTX *ctx)
{
RSA_PKEY_CTX *rctx = ctx->data;
if (ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
if (!pkey_ctx_is_pss(ctx))
return 1;
/* If all parameters are default values don't set pss */
if (rctx->md == NULL && rctx->mgf1md == NULL && rctx->saltlen == -2)
return 1;
rsa->pss = rsa_pss_params_create(rctx->md, rctx->mgf1md,