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EVP: For SIGNATURE operations, pass the propquery early

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Instead of passing it with signature->digest_verify_init() and
signature->digest_sign_init(), we pass it with signature->newctx().
This allows the digests that are indicated by RSA PSS parameters
to have a useful propquery.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11710)
This commit is contained in:
Richard Levitte 2020-05-06 21:44:58 +02:00
parent ea297dca50
commit 2c6094baca
7 changed files with 65 additions and 29 deletions
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9
crypto/evp/m_sigver.c
View File

@ -71,6 +71,9 @@ static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
locpctx = ctx->pctx;
evp_pkey_ctx_free_old_ops(locpctx);
if (props == NULL)
props = locpctx->propquery;
/*
* TODO when we stop falling back to legacy, this and the ERR_pop_to_mark()
* calls can be removed.
@ -142,7 +145,7 @@ static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
locpctx->operation = ver ? EVP_PKEY_OP_VERIFYCTX
: EVP_PKEY_OP_SIGNCTX;
locpctx->op.sig.sigprovctx
= signature->newctx(ossl_provider_ctx(signature->prov));
= signature->newctx(ossl_provider_ctx(signature->prov), props);
if (locpctx->op.sig.sigprovctx == NULL) {
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
goto err;
@ -182,14 +185,14 @@ static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
goto err;
}
ret = signature->digest_verify_init(locpctx->op.sig.sigprovctx,
mdname, props, provkey);
mdname, provkey);
} else {
if (signature->digest_sign_init == NULL) {
ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
goto err;
}
ret = signature->digest_sign_init(locpctx->op.sig.sigprovctx,
mdname, props, provkey);
mdname, provkey);
}
return ret ? 1 : 0;

3
crypto/evp/signature.c
View File

@ -417,7 +417,8 @@ static int evp_pkey_signature_init(EVP_PKEY_CTX *ctx, int operation)
/* No more legacy from here down to legacy: */
ctx->op.sig.signature = signature;
ctx->op.sig.sigprovctx = signature->newctx(ossl_provider_ctx(signature->prov));
ctx->op.sig.sigprovctx =
signature->newctx(ossl_provider_ctx(signature->prov), ctx->propquery);
if (ctx->op.sig.sigprovctx == NULL) {
/* The provider key can stay in the cache */
EVPerr(0, EVP_R_INITIALIZATION_ERROR);

9
include/openssl/core_numbers.h
View File

@ -524,7 +524,8 @@ OSSL_CORE_MAKE_FUNC(const OSSL_PARAM *, OP_keyexch_gettable_ctx_params,
# define OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS 24
# define OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS 25
OSSL_CORE_MAKE_FUNC(void *, OP_signature_newctx, (void *provctx))
OSSL_CORE_MAKE_FUNC(void *, OP_signature_newctx, (void *provctx,
const char *propq))
OSSL_CORE_MAKE_FUNC(int, OP_signature_sign_init, (void *ctx, void *provkey))
OSSL_CORE_MAKE_FUNC(int, OP_signature_sign, (void *ctx, unsigned char *sig,
size_t *siglen, size_t sigsize,
@ -545,8 +546,7 @@ OSSL_CORE_MAKE_FUNC(int, OP_signature_verify_recover, (void *ctx,
const unsigned char *sig,
size_t siglen))
OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_sign_init,
(void *ctx, const char *mdname, const char *props,
void *provkey))
(void *ctx, const char *mdname, void *provkey))
OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_sign_update,
(void *ctx, const unsigned char *data, size_t datalen))
OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_sign_final,
@ -556,8 +556,7 @@ OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_sign,
(void *ctx, unsigned char *sigret, size_t *siglen,
size_t sigsize, const unsigned char *tbs, size_t tbslen))
OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_verify_init,
(void *ctx, const char *mdname, const char *props,
void *provkey))
(void *ctx, const char *mdname, void *provkey))
OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_verify_update,
(void *ctx, const unsigned char *data, size_t datalen))
OSSL_CORE_MAKE_FUNC(int, OP_signature_digest_verify_final,

15
providers/implementations/signature/dsa.c
View File

@ -63,6 +63,7 @@ static OSSL_OP_signature_settable_ctx_md_params_fn dsa_settable_ctx_md_params;
typedef struct {
OPENSSL_CTX *libctx;
char *propq;
DSA *dsa;
/*
@ -131,7 +132,7 @@ static int dsa_get_md_nid(const EVP_MD *md)
return mdnid;
}
static void *dsa_newctx(void *provctx)
static void *dsa_newctx(void *provctx, const char *propq)
{
PROV_DSA_CTX *pdsactx = OPENSSL_zalloc(sizeof(PROV_DSA_CTX));
@ -140,12 +141,20 @@ static void *dsa_newctx(void *provctx)
pdsactx->libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
pdsactx->flag_allow_md = 1;
if (propq != NULL && (pdsactx->propq = OPENSSL_strdup(propq)) == NULL) {
OPENSSL_free(pdsactx);
pdsactx = NULL;
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
}
return pdsactx;
}
static int dsa_setup_md(PROV_DSA_CTX *ctx,
const char *mdname, const char *mdprops)
{
if (mdprops == NULL)
mdprops = ctx->propq;
if (mdname != NULL) {
EVP_MD *md = EVP_MD_fetch(ctx->libctx, mdname, mdprops);
int md_nid = dsa_get_md_nid(md);
@ -234,7 +243,7 @@ static int dsa_verify(void *vpdsactx, const unsigned char *sig, size_t siglen,
}
static int dsa_digest_signverify_init(void *vpdsactx, const char *mdname,
const char *props, void *vdsa)
void *vdsa)
{
PROV_DSA_CTX *pdsactx = (PROV_DSA_CTX *)vpdsactx;
@ -242,7 +251,7 @@ static int dsa_digest_signverify_init(void *vpdsactx, const char *mdname,
if (!dsa_signature_init(vpdsactx, vdsa))
return 0;
if (!dsa_setup_md(pdsactx, mdname, props))
if (!dsa_setup_md(pdsactx, mdname, NULL))
return 0;
pdsactx->mdctx = EVP_MD_CTX_new();

12
providers/implementations/signature/ecdsa.c
View File

@ -60,6 +60,7 @@ static OSSL_OP_signature_settable_ctx_md_params_fn ecdsa_settable_ctx_md_params;
typedef struct {
OPENSSL_CTX *libctx;
char *propq;
EC_KEY *ec;
char mdname[OSSL_MAX_NAME_SIZE];
@ -90,7 +91,7 @@ typedef struct {
BIGNUM *r;
} PROV_ECDSA_CTX;
static void *ecdsa_newctx(void *provctx)
static void *ecdsa_newctx(void *provctx, const char *propq)
{
PROV_ECDSA_CTX *ctx = OPENSSL_zalloc(sizeof(PROV_ECDSA_CTX));
@ -98,6 +99,11 @@ static void *ecdsa_newctx(void *provctx)
return NULL;
ctx->libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
if (propq != NULL && (ctx->propq = OPENSSL_strdup(propq)) == NULL) {
OPENSSL_free(ctx);
ctx = NULL;
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
}
return ctx;
}
@ -203,7 +209,7 @@ static void free_md(PROV_ECDSA_CTX *ctx)
}
static int ecdsa_digest_signverify_init(void *vctx, const char *mdname,
const char *props, void *ec)
void *ec)
{
PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx;
int md_nid = NID_undef;
@ -214,7 +220,7 @@ static int ecdsa_digest_signverify_init(void *vctx, const char *mdname,
if (!ecdsa_signature_init(vctx, ec))
return 0;
ctx->md = EVP_MD_fetch(ctx->libctx, mdname, props);
ctx->md = EVP_MD_fetch(ctx->libctx, mdname, ctx->propq);
if ((md_nid = get_md_nid(ctx->md)) == NID_undef)
goto error;

4
providers/implementations/signature/eddsa.c
View File

@ -36,7 +36,7 @@ typedef struct {
ECX_KEY *key;
} PROV_EDDSA_CTX;
static void *eddsa_newctx(void *provctx)
static void *eddsa_newctx(void *provctx, const char *propq_unused)
{
PROV_EDDSA_CTX *peddsactx = OPENSSL_zalloc(sizeof(PROV_EDDSA_CTX));
@ -51,7 +51,7 @@ static void *eddsa_newctx(void *provctx)
}
static int eddsa_digest_signverify_init(void *vpeddsactx, const char *mdname,
const char *props, void *vedkey)
void *vedkey)
{
PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
ECX_KEY *edkey = (ECX_KEY *)vedkey;

42
providers/implementations/signature/rsa.c
View File

@ -73,6 +73,7 @@ static OSSL_ITEM padding_item[] = {
typedef struct {
OPENSSL_CTX *libctx;
char *propq;
RSA *rsa;
int operation;
@ -180,7 +181,7 @@ static int rsa_check_padding(int mdnid, int padding)
return 1;
}
static void *rsa_newctx(void *provctx)
static void *rsa_newctx(void *provctx, const char *propq)
{
PROV_RSA_CTX *prsactx = OPENSSL_zalloc(sizeof(PROV_RSA_CTX));
@ -189,6 +190,11 @@ static void *rsa_newctx(void *provctx)
prsactx->libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
prsactx->flag_allow_md = 1;
if (propq != NULL && (prsactx->propq = OPENSSL_strdup(propq)) == NULL) {
OPENSSL_free(prsactx);
prsactx = NULL;
ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
}
return prsactx;
}
@ -219,6 +225,9 @@ static int rsa_signature_init(void *vprsactx, void *vrsa, int operation)
static int rsa_setup_md(PROV_RSA_CTX *ctx, const char *mdname,
const char *mdprops)
{
if (mdprops == NULL)
mdprops = ctx->propq;
if (mdname != NULL) {
EVP_MD *md = EVP_MD_fetch(ctx->libctx, mdname, mdprops);
int md_nid = rsa_get_md_nid(md);
@ -260,12 +269,15 @@ static int rsa_setup_md(PROV_RSA_CTX *ctx, const char *mdname,
}
static int rsa_setup_mgf1_md(PROV_RSA_CTX *ctx, const char *mdname,
const char *props)
const char *mdprops)
{
if (mdprops == NULL)
mdprops = ctx->propq;
if (ctx->mgf1_mdname[0] != '\0')
EVP_MD_free(ctx->mgf1_md);
if ((ctx->mgf1_md = EVP_MD_fetch(ctx->libctx, mdname, props)) == NULL)
if ((ctx->mgf1_md = EVP_MD_fetch(ctx->libctx, mdname, mdprops)) == NULL)
return 0;
OPENSSL_strlcpy(ctx->mgf1_mdname, mdname, sizeof(ctx->mgf1_mdname));
@ -592,14 +604,13 @@ static int rsa_verify(void *vprsactx, const unsigned char *sig, size_t siglen,
}
static int rsa_digest_signverify_init(void *vprsactx, const char *mdname,
const char *props, void *vrsa,
int operation)
void *vrsa, int operation)
{
PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx;
prsactx->flag_allow_md = 0;
if (!rsa_signature_init(vprsactx, vrsa, operation)
|| !rsa_setup_md(prsactx, mdname, props))
|| !rsa_setup_md(prsactx, mdname, NULL))
return 0;
prsactx->mdctx = EVP_MD_CTX_new();
@ -706,6 +717,7 @@ static void rsa_freectx(void *vprsactx)
EVP_MD_CTX_free(prsactx->mdctx);
EVP_MD_free(prsactx->md);
EVP_MD_free(prsactx->mgf1_md);
OPENSSL_free(prsactx->propq);
free_tbuf(prsactx);
OPENSSL_clear_free(prsactx, sizeof(prsactx));
@ -869,8 +881,11 @@ static int rsa_set_ctx_params(void *vprsactx, const OSSL_PARAM params[])
if (!OSSL_PARAM_get_utf8_string(p, &pmdname, sizeof(mdname)))
return 0;
if (propsp != NULL
&& !OSSL_PARAM_get_utf8_string(propsp, &pmdprops, sizeof(mdprops)))
if (propsp == NULL)
pmdprops = NULL;
else if (!OSSL_PARAM_get_utf8_string(propsp,
&pmdprops, sizeof(mdprops)))
return 0;
/* TODO(3.0) PSS check needs more work */
@ -883,7 +898,7 @@ static int rsa_set_ctx_params(void *vprsactx, const OSSL_PARAM params[])
}
/* non-PSS code follows */
if (!rsa_setup_md(prsactx, mdname, mdprops))
if (!rsa_setup_md(prsactx, mdname, pmdprops))
return 0;
}
@ -1054,8 +1069,11 @@ static int rsa_set_ctx_params(void *vprsactx, const OSSL_PARAM params[])
if (!OSSL_PARAM_get_utf8_string(p, &pmdname, sizeof(mdname)))
return 0;
if (propsp != NULL
&& !OSSL_PARAM_get_utf8_string(propsp, &pmdprops, sizeof(mdprops)))
if (propsp == NULL)
pmdprops = NULL;
else if (!OSSL_PARAM_get_utf8_string(propsp,
&pmdprops, sizeof(mdprops)))
return 0;
if (prsactx->pad_mode != RSA_PKCS1_PSS_PADDING) {
@ -1073,7 +1091,7 @@ static int rsa_set_ctx_params(void *vprsactx, const OSSL_PARAM params[])
}
/* non-PSS code follows */
if (!rsa_setup_mgf1_md(prsactx, mdname, mdprops))
if (!rsa_setup_mgf1_md(prsactx, mdname, pmdprops))
return 0;
}