/*
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* https://www.openssl.org/source/license.html
*/
+/*
+ * RSA low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
#include <stdio.h>
#include <openssl/crypto.h>
-#include "internal/cryptlib.h"
-#include "internal/refcount.h"
-#include "internal/bn_int.h"
+#include <openssl/core_names.h>
#include <openssl/engine.h>
#include <openssl/evp.h>
-#include "internal/evp_int.h"
-#include "rsa_locl.h"
+#include "internal/cryptlib.h"
+#include "internal/refcount.h"
+#include "openssl/param_build.h"
+#include "crypto/bn.h"
+#include "crypto/evp.h"
+#include "crypto/rsa.h"
+#include "crypto/security_bits.h"
+#include "rsa_local.h"
+
+static RSA *rsa_new_intern(ENGINE *engine, OSSL_LIB_CTX *libctx);
+#ifndef FIPS_MODULE
RSA *RSA_new(void)
{
- return RSA_new_method(NULL);
+ return rsa_new_intern(NULL, NULL);
}
const RSA_METHOD *RSA_get_method(const RSA *rsa)
}
RSA *RSA_new_method(ENGINE *engine)
+{
+ return rsa_new_intern(engine, NULL);
+}
+#endif
+
+RSA *ossl_rsa_new_with_ctx(OSSL_LIB_CTX *libctx)
+{
+ return rsa_new_intern(NULL, libctx);
+}
+
+static RSA *rsa_new_intern(ENGINE *engine, OSSL_LIB_CTX *libctx)
{
RSA *ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
- RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_RSA, ERR_R_MALLOC_FAILURE);
return NULL;
}
ret->references = 1;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
- RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_RSA, ERR_R_MALLOC_FAILURE);
OPENSSL_free(ret);
return NULL;
}
+ ret->libctx = libctx;
ret->meth = RSA_get_default_method();
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
if (engine) {
if (!ENGINE_init(engine)) {
- RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+ ERR_raise(ERR_LIB_RSA, ERR_R_ENGINE_LIB);
goto err;
}
ret->engine = engine;
if (ret->engine) {
ret->meth = ENGINE_get_RSA(ret->engine);
if (ret->meth == NULL) {
- RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+ ERR_raise(ERR_LIB_RSA, ERR_R_ENGINE_LIB);
goto err;
}
}
#endif
ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
+#ifndef FIPS_MODULE
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) {
goto err;
}
+#endif
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
- RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL);
+ ERR_raise(ERR_LIB_RSA, ERR_R_INIT_FAIL);
goto err;
}
if (r->meth != NULL && r->meth->finish != NULL)
r->meth->finish(r);
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODULE)
ENGINE_finish(r->engine);
#endif
+#ifndef FIPS_MODULE
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
+#endif
CRYPTO_THREAD_lock_free(r->lock);
BN_clear_free(r->dmp1);
BN_clear_free(r->dmq1);
BN_clear_free(r->iqmp);
+
+#if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS)
+ rsa_acvp_test_free(r->acvp_test);
+#endif
+
+#ifndef FIPS_MODULE
RSA_PSS_PARAMS_free(r->pss);
sk_RSA_PRIME_INFO_pop_free(r->prime_infos, rsa_multip_info_free);
+#endif
BN_BLINDING_free(r->blinding);
BN_BLINDING_free(r->mt_blinding);
OPENSSL_free(r->bignum_data);
return i > 1 ? 1 : 0;
}
+OSSL_LIB_CTX *ossl_rsa_get0_libctx(RSA *r)
+{
+ return r->libctx;
+}
+
+void ossl_rsa_set0_libctx(RSA *r, OSSL_LIB_CTX *libctx)
+{
+ r->libctx = libctx;
+}
+
+#ifndef FIPS_MODULE
int RSA_set_ex_data(RSA *r, int idx, void *arg)
{
return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
{
return CRYPTO_get_ex_data(&r->ex_data, idx);
}
+#endif
/*
* Define a scaling constant for our fixed point arithmetic.
* NIST SP 800-56B rev 2 Appendix D: Maximum Security Strength Estimates for IFC
* Modulus Lengths.
*
+ * Note that this formula is also referred to in SP800-56A rev3 Appendix D:
+ * for FFC safe prime groups for modp and ffdhe.
+ * After Table 25 and Table 26 it refers to
+ * "The maximum security strength estimates were calculated using the formula in
+ * Section 7.5 of the FIPS 140 IG and rounded to the nearest multiple of eight
+ * bits".
+ *
+ * The formula is:
+ *
* E = \frac{1.923 \sqrt[3]{nBits \cdot log_e(2)}
* \cdot(log_e(nBits \cdot log_e(2))^{2/3} - 4.69}{log_e(2)}
* The two cube roots are merged together here.
*/
-uint16_t rsa_compute_security_bits(int n)
+uint16_t ifc_ffc_compute_security_bits(int n)
{
uint64_t x;
uint32_t lx;
return (y + 4) & ~7;
}
+
+
int RSA_security_bits(const RSA *rsa)
{
int bits = BN_num_bits(rsa->n);
+#ifndef FIPS_MODULE
if (rsa->version == RSA_ASN1_VERSION_MULTI) {
/* This ought to mean that we have private key at hand. */
int ex_primes = sk_RSA_PRIME_INFO_num(rsa->prime_infos);
if (ex_primes <= 0 || (ex_primes + 2) > rsa_multip_cap(bits))
return 0;
}
- return rsa_compute_security_bits(bits);
+#endif
+ return ifc_ffc_compute_security_bits(bits);
}
int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
r->d = d;
BN_set_flags(r->d, BN_FLG_CONSTTIME);
}
+ r->dirty_cnt++;
return 1;
}
r->q = q;
BN_set_flags(r->q, BN_FLG_CONSTTIME);
}
+ r->dirty_cnt++;
return 1;
}
r->iqmp = iqmp;
BN_set_flags(r->iqmp, BN_FLG_CONSTTIME);
}
+ r->dirty_cnt++;
return 1;
}
+#ifndef FIPS_MODULE
/*
* Is it better to export RSA_PRIME_INFO structure
* and related functions to let user pass a triplet?
if (pinfo == NULL)
goto err;
if (primes[i] != NULL && exps[i] != NULL && coeffs[i] != NULL) {
- BN_free(pinfo->r);
- BN_free(pinfo->d);
- BN_free(pinfo->t);
+ BN_clear_free(pinfo->r);
+ BN_clear_free(pinfo->d);
+ BN_clear_free(pinfo->t);
pinfo->r = primes[i];
pinfo->d = exps[i];
pinfo->t = coeffs[i];
+ BN_set_flags(pinfo->r, BN_FLG_CONSTTIME);
+ BN_set_flags(pinfo->d, BN_FLG_CONSTTIME);
+ BN_set_flags(pinfo->t, BN_FLG_CONSTTIME);
} else {
rsa_multip_info_free(pinfo);
goto err;
}
r->version = RSA_ASN1_VERSION_MULTI;
+ r->dirty_cnt++;
return 1;
err:
sk_RSA_PRIME_INFO_pop_free(prime_infos, rsa_multip_info_free_ex);
return 0;
}
+#endif
void RSA_get0_key(const RSA *r,
const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
*q = r->q;
}
+#ifndef FIPS_MODULE
int RSA_get_multi_prime_extra_count(const RSA *r)
{
int pnum;
return 1;
}
+#endif
void RSA_get0_crt_params(const RSA *r,
const BIGNUM **dmp1, const BIGNUM **dmq1,
*iqmp = r->iqmp;
}
+#ifndef FIPS_MODULE
int RSA_get0_multi_prime_crt_params(const RSA *r, const BIGNUM *exps[],
const BIGNUM *coeffs[])
{
return 1;
}
+#endif
const BIGNUM *RSA_get0_n(const RSA *r)
{
return r->iqmp;
}
+const RSA_PSS_PARAMS *RSA_get0_pss_params(const RSA *r)
+{
+#ifdef FIPS_MODULE
+ return NULL;
+#else
+ return r->pss;
+#endif
+}
+
+/* Internal */
+RSA_PSS_PARAMS_30 *ossl_rsa_get0_pss_params_30(RSA *r)
+{
+ return &r->pss_params;
+}
+
void RSA_clear_flags(RSA *r, int flags)
{
r->flags &= ~flags;
return r->version;
}
+#ifndef FIPS_MODULE
ENGINE *RSA_get0_engine(const RSA *r)
{
return r->engine;
return -1;
return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, p1, p2);
}
+#endif
+
+DEFINE_STACK_OF(BIGNUM)
+
+int ossl_rsa_set0_all_params(RSA *r, const STACK_OF(BIGNUM) *primes,
+ const STACK_OF(BIGNUM) *exps,
+ const STACK_OF(BIGNUM) *coeffs)
+{
+#ifndef FIPS_MODULE
+ STACK_OF(RSA_PRIME_INFO) *prime_infos, *old_infos = NULL;
+#endif
+ int pnum;
+
+ if (primes == NULL || exps == NULL || coeffs == NULL)
+ return 0;
+
+ pnum = sk_BIGNUM_num(primes);
+ if (pnum < 2
+ || pnum != sk_BIGNUM_num(exps)
+ || pnum != sk_BIGNUM_num(coeffs) + 1)
+ return 0;
+
+ if (!RSA_set0_factors(r, sk_BIGNUM_value(primes, 0),
+ sk_BIGNUM_value(primes, 1))
+ || !RSA_set0_crt_params(r, sk_BIGNUM_value(exps, 0),
+ sk_BIGNUM_value(exps, 1),
+ sk_BIGNUM_value(coeffs, 0)))
+ return 0;
+
+#ifndef FIPS_MODULE
+ old_infos = r->prime_infos;
+#endif
+
+ if (pnum > 2) {
+#ifndef FIPS_MODULE
+ int i;
+
+ prime_infos = sk_RSA_PRIME_INFO_new_reserve(NULL, pnum);
+ if (prime_infos == NULL)
+ return 0;
+
+ for (i = 2; i < pnum; i++) {
+ BIGNUM *prime = sk_BIGNUM_value(primes, i);
+ BIGNUM *exp = sk_BIGNUM_value(exps, i);
+ BIGNUM *coeff = sk_BIGNUM_value(coeffs, i - 1);
+ RSA_PRIME_INFO *pinfo = NULL;
+
+ if (!ossl_assert(prime != NULL && exp != NULL && coeff != NULL))
+ goto err;
+
+ /* Using rsa_multip_info_new() is wasteful, so allocate directly */
+ if ((pinfo = OPENSSL_zalloc(sizeof(*pinfo))) == NULL) {
+ ERR_raise(ERR_LIB_RSA, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ pinfo->r = prime;
+ pinfo->d = exp;
+ pinfo->t = coeff;
+ BN_set_flags(pinfo->r, BN_FLG_CONSTTIME);
+ BN_set_flags(pinfo->d, BN_FLG_CONSTTIME);
+ BN_set_flags(pinfo->t, BN_FLG_CONSTTIME);
+ (void)sk_RSA_PRIME_INFO_push(prime_infos, pinfo);
+ }
+
+ r->prime_infos = prime_infos;
+
+ if (!rsa_multip_calc_product(r)) {
+ r->prime_infos = old_infos;
+ goto err;
+ }
+#else
+ return 0;
+#endif
+ }
+
+#ifndef FIPS_MODULE
+ if (old_infos != NULL) {
+ /*
+ * This is hard to deal with, since the old infos could
+ * also be set by this function and r, d, t should not
+ * be freed in that case. So currently, stay consistent
+ * with other *set0* functions: just free it...
+ */
+ sk_RSA_PRIME_INFO_pop_free(old_infos, rsa_multip_info_free);
+ }
+#endif
+
+ r->version = pnum > 2 ? RSA_ASN1_VERSION_MULTI : RSA_ASN1_VERSION_DEFAULT;
+ r->dirty_cnt++;
+
+ return 1;
+#ifndef FIPS_MODULE
+ err:
+ /* r, d, t should not be freed */
+ sk_RSA_PRIME_INFO_pop_free(prime_infos, rsa_multip_info_free_ex);
+ return 0;
+#endif
+}
+
+DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const, BIGNUM)
+
+int ossl_rsa_get0_all_params(RSA *r, STACK_OF(BIGNUM_const) *primes,
+ STACK_OF(BIGNUM_const) *exps,
+ STACK_OF(BIGNUM_const) *coeffs)
+{
+#ifndef FIPS_MODULE
+ RSA_PRIME_INFO *pinfo;
+ int i, pnum;
+#endif
+
+ if (r == NULL)
+ return 0;
+
+ /* If |p| is NULL, there are no CRT parameters */
+ if (RSA_get0_p(r) == NULL)
+ return 1;
+
+ sk_BIGNUM_const_push(primes, RSA_get0_p(r));
+ sk_BIGNUM_const_push(primes, RSA_get0_q(r));
+ sk_BIGNUM_const_push(exps, RSA_get0_dmp1(r));
+ sk_BIGNUM_const_push(exps, RSA_get0_dmq1(r));
+ sk_BIGNUM_const_push(coeffs, RSA_get0_iqmp(r));
+
+#ifndef FIPS_MODULE
+ pnum = RSA_get_multi_prime_extra_count(r);
+ for (i = 0; i < pnum; i++) {
+ pinfo = sk_RSA_PRIME_INFO_value(r->prime_infos, i);
+ sk_BIGNUM_const_push(primes, pinfo->r);
+ sk_BIGNUM_const_push(exps, pinfo->d);
+ sk_BIGNUM_const_push(coeffs, pinfo->t);
+ }
+#endif
+
+ return 1;
+}
+
+#ifndef FIPS_MODULE
+int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int pad_mode)
+{
+ OSSL_PARAM pad_params[2], *p = pad_params;
+
+ if (ctx == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA or RSA-PSS return error */
+ if (ctx->pmeth != NULL
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if ((!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ || ctx->op.ciph.ciphprovctx == NULL)
+ && (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ || ctx->op.sig.sigprovctx == NULL))
+ return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_RSA_PADDING,
+ pad_mode, NULL);
+
+ *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_PAD_MODE, &pad_mode);
+ *p++ = OSSL_PARAM_construct_end();
+
+ return EVP_PKEY_CTX_set_params(ctx, pad_params);
+}
+
+int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx, int *pad_mode)
+{
+ OSSL_PARAM pad_params[2], *p = pad_params;
+
+ if (ctx == NULL || pad_mode == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA or RSA-PSS return error */
+ if (ctx->pmeth != NULL
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if ((!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ || ctx->op.ciph.ciphprovctx == NULL)
+ && (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ || ctx->op.sig.sigprovctx == NULL))
+ return EVP_PKEY_CTX_ctrl(ctx, -1, -1, EVP_PKEY_CTRL_GET_RSA_PADDING, 0,
+ pad_mode);
+
+ *p++ = OSSL_PARAM_construct_int(OSSL_PKEY_PARAM_PAD_MODE, pad_mode);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_get_params(ctx, pad_params))
+ return 0;
+
+ return 1;
+
+}
+
+int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
+{
+ const char *name;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.ciph.ciphprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
+ EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md);
+
+ name = (md == NULL) ? "" : EVP_MD_name(md);
+
+ return EVP_PKEY_CTX_set_rsa_oaep_md_name(ctx, name, NULL);
+}
+
+int EVP_PKEY_CTX_set_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
+ const char *mdprops)
+{
+ OSSL_PARAM rsa_params[3], *p = rsa_params;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST,
+ /*
+ * Cast away the const. This is read
+ * only so should be safe
+ */
+ (char *)mdname, 0);
+ if (mdprops != NULL) {
+ *p++ = OSSL_PARAM_construct_utf8_string(
+ OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST_PROPS,
+ /*
+ * Cast away the const. This is read
+ * only so should be safe
+ */
+ (char *)mdprops, 0);
+ }
+ *p++ = OSSL_PARAM_construct_end();
+
+ return EVP_PKEY_CTX_set_params(ctx, rsa_params);
+}
+
+int EVP_PKEY_CTX_get_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, char *name,
+ size_t namelen)
+{
+ OSSL_PARAM rsa_params[2], *p = rsa_params;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_ASYM_CIPHER_PARAM_OAEP_DIGEST,
+ name, namelen);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_get_params(ctx, rsa_params))
+ return -1;
+
+ return 1;
+}
+
+int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
+{
+ /* 80 should be big enough */
+ char name[80] = "";
+
+ if (ctx == NULL || md == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.ciph.ciphprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
+ EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)md);
+
+ if (EVP_PKEY_CTX_get_rsa_oaep_md_name(ctx, name, sizeof(name)) <= 0)
+ return -1;
+
+ /* May be NULL meaning "unknown" */
+ *md = evp_get_digestbyname_ex(ctx->libctx, name);
+
+ return 1;
+}
+
+static int int_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx,
+ /* For EVP_PKEY_CTX_ctrl() */
+ int keytype, int optype, int cmd,
+ const EVP_MD *md,
+ /* For EVP_PKEY_CTX_set_params() */
+ const char *mdname, const char *mdprops)
+{
+ OSSL_PARAM rsa_params[3], *p = rsa_params;
+
+ if (ctx == NULL || (ctx->operation & optype) == 0) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL
+ && (keytype == -1
+ ? (ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ : ctx->pmeth->pkey_id != keytype))
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (cmd != -1) {
+ if ((EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.ciphprovctx == NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx == NULL)
+ || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
+ && ctx->op.keymgmt.genctx == NULL))
+ return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, (void *)md);
+
+ mdname = (md == NULL) ? "" : EVP_MD_name(md);
+ }
+
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MGF1_DIGEST,
+ /*
+ * Cast away the const. This is
+ * read only so should be safe
+ */
+ (char *)mdname, 0);
+ if (mdprops != NULL) {
+ *p++ =
+ OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MGF1_PROPERTIES,
+ /*
+ * Cast away the const. This is
+ * read only so should be safe
+ */
+ (char *)mdprops, 0);
+ }
+ *p++ = OSSL_PARAM_construct_end();
+
+ return EVP_PKEY_CTX_set_params(ctx, rsa_params);
+}
+
+int EVP_PKEY_CTX_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
+{
+ return int_set_rsa_mgf1_md(ctx, -1,
+ EVP_PKEY_OP_TYPE_CRYPT | EVP_PKEY_OP_TYPE_SIG,
+ EVP_PKEY_CTRL_RSA_MGF1_MD, md, NULL, NULL);
+}
+
+int EVP_PKEY_CTX_set_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, const char *mdname,
+ const char *mdprops)
+{
+ return int_set_rsa_mgf1_md(ctx, -1,
+ EVP_PKEY_OP_TYPE_CRYPT | EVP_PKEY_OP_TYPE_SIG,
+ -1, NULL, mdname, mdprops);
+}
+
+int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
+{
+ return int_set_rsa_mgf1_md(ctx, EVP_PKEY_RSA_PSS,
+ EVP_PKEY_OP_KEYGEN, EVP_PKEY_CTRL_RSA_MGF1_MD,
+ md, NULL, NULL);
+}
+
+int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md_name(EVP_PKEY_CTX *ctx,
+ const char *mdname)
+{
+ return int_set_rsa_mgf1_md(ctx, EVP_PKEY_RSA_PSS,
+ EVP_PKEY_OP_TYPE_CRYPT | EVP_PKEY_OP_TYPE_SIG,
+ -1, NULL, mdname, NULL);
+}
+
+int EVP_PKEY_CTX_get_rsa_mgf1_md_name(EVP_PKEY_CTX *ctx, char *name,
+ size_t namelen)
+{
+ OSSL_PARAM rsa_params[2], *p = rsa_params;
+
+ if (ctx == NULL
+ || (!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx))) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA or RSA-PSS return error */
+ if (ctx->pmeth != NULL
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ return -1;
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MGF1_DIGEST,
+ name, namelen);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_get_params(ctx, rsa_params))
+ return -1;
+
+ return 1;
+}
+
+int EVP_PKEY_CTX_get_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
+{
+ /* 80 should be big enough */
+ char name[80] = "";
+
+ if (ctx == NULL
+ || (!EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx))) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA or RSA-PSS return error */
+ if (ctx->pmeth != NULL
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if ((EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)
+ && ctx->op.ciph.ciphprovctx == NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx == NULL))
+ return EVP_PKEY_CTX_ctrl(ctx, -1,
+ EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
+ EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)md);
+
+ if (EVP_PKEY_CTX_get_rsa_mgf1_md_name(ctx, name, sizeof(name)) <= 0)
+ return -1;
+
+ /* May be NULL meaning "unknown" */
+ *md = evp_get_digestbyname_ex(ctx->libctx, name);
+
+ return 1;
+}
+
+int EVP_PKEY_CTX_set0_rsa_oaep_label(EVP_PKEY_CTX *ctx, void *label, int llen)
+{
+ OSSL_PARAM rsa_params[2], *p = rsa_params;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.ciph.ciphprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
+ EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen,
+ (void *)label);
+
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL,
+ /*
+ * Cast away the const. This is
+ * read only so should be safe
+ */
+ (void *)label,
+ (size_t)llen);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_set_params(ctx, rsa_params))
+ return 0;
+
+ OPENSSL_free(label);
+ return 1;
+}
+
+int EVP_PKEY_CTX_get0_rsa_oaep_label(EVP_PKEY_CTX *ctx, unsigned char **label)
+{
+ OSSL_PARAM rsa_params[2], *p = rsa_params;
+ size_t labellen;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_ASYM_CIPHER_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.ciph.ciphprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
+ EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0,
+ (void *)label);
+
+ *p++ = OSSL_PARAM_construct_octet_ptr(OSSL_ASYM_CIPHER_PARAM_OAEP_LABEL,
+ (void **)label, 0);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_get_params(ctx, rsa_params))
+ return -1;
+
+ labellen = rsa_params[0].return_size;
+ if (labellen > INT_MAX)
+ return -1;
+
+ return (int)labellen;
+}
+
+static int int_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int saltlen,
+ int keytype, int optype)
+{
+ OSSL_PARAM pad_params[2], *p = pad_params;
+
+ if (ctx == NULL || (ctx->operation & optype) == 0) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA or RSA-PSS return error */
+ if (ctx->pmeth != NULL
+ && (keytype == -1
+ ? (ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ : ctx->pmeth->pkey_id != keytype))
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if ((EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx == NULL)
+ || (EVP_PKEY_CTX_IS_GEN_OP(ctx)
+ && ctx->op.keymgmt.genctx == NULL))
+ return EVP_PKEY_CTX_ctrl(ctx, keytype, optype,
+ EVP_PKEY_CTRL_RSA_PSS_SALTLEN,
+ saltlen, NULL);
+
+ *p++ =
+ OSSL_PARAM_construct_int(OSSL_SIGNATURE_PARAM_PSS_SALTLEN, &saltlen);
+ *p++ = OSSL_PARAM_construct_end();
+
+ return EVP_PKEY_CTX_set_params(ctx, pad_params);
+}
+
+int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int saltlen)
+{
+ return int_set_rsa_pss_saltlen(ctx, saltlen, -1, EVP_PKEY_OP_TYPE_SIG);
+}
+
+int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *ctx, int saltlen)
+{
+ return int_set_rsa_pss_saltlen(ctx, saltlen, EVP_PKEY_RSA_PSS,
+ EVP_PKEY_OP_KEYGEN);
+}
+
+int EVP_PKEY_CTX_get_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int *saltlen)
+{
+ OSSL_PARAM pad_params[2], *p = pad_params;
+
+ if (ctx == NULL || saltlen == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA or RSA-PSS return error */
+ if (ctx->pmeth != NULL
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA
+ && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ || ctx->op.sig.sigprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, -1, -1,
+ EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN,
+ 0, saltlen);
+
+ *p++ =
+ OSSL_PARAM_construct_int(OSSL_SIGNATURE_PARAM_PSS_SALTLEN, saltlen);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_get_params(ctx, pad_params))
+ return 0;
+
+ return 1;
+
+}
+
+int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits)
+{
+ OSSL_PARAM params[2], *p = params;
+ size_t bits2 = bits;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.keymgmt.genctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL);
+
+ *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_BITS, &bits2);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_set_params(ctx, params))
+ return 0;
+
+ return 1;
+}
+
+static int evp_pkey_ctx_set_rsa_keygen_pubexp_intern(EVP_PKEY_CTX *ctx,
+ BIGNUM *pubexp,
+ int copy)
+{
+ OSSL_PARAM_BLD *tmpl;
+ OSSL_PARAM *params;
+ int ret;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.keymgmt.genctx == NULL) {
+ if (copy == 1)
+ pubexp = BN_dup(pubexp);
+ ret = EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp);
+ if ((copy == 1) && (ret <= 0))
+ BN_free(pubexp);
+ return ret;
+ }
+
+ if ((tmpl = OSSL_PARAM_BLD_new()) == NULL)
+ return 0;
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_RSA_E, pubexp)
+ || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) {
+ OSSL_PARAM_BLD_free(tmpl);
+ return 0;
+ }
+ OSSL_PARAM_BLD_free(tmpl);
+
+ ret = EVP_PKEY_CTX_set_params(ctx, params);
+ OSSL_PARAM_BLD_free_params(params);
+
+ /*
+ * Satisfy memory semantics for pre-3.0 callers of
+ * EVP_PKEY_CTX_set_rsa_keygen_pubexp(): their expectation is that input
+ * pubexp BIGNUM becomes managed by the EVP_PKEY_CTX on success.
+ */
+ if ((copy == 0) && (ret > 0))
+ ctx->rsa_pubexp = pubexp;
+
+ return ret;
+}
+
+int EVP_PKEY_CTX_set_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp)
+{
+ return evp_pkey_ctx_set_rsa_keygen_pubexp_intern(ctx, pubexp, 0);
+}
+
+int EVP_PKEY_CTX_set1_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp)
+{
+ return evp_pkey_ctx_set_rsa_keygen_pubexp_intern(ctx, pubexp, 1);
+}
+
+int EVP_PKEY_CTX_set_rsa_keygen_primes(EVP_PKEY_CTX *ctx, int primes)
+{
+ OSSL_PARAM params[2], *p = params;
+ size_t primes2 = primes;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.keymgmt.genctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES, primes,
+ NULL);
+
+ *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_PRIMES, &primes2);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_set_params(ctx, params))
+ return 0;
+
+ return 1;
+}
+#endif
projects / openssl.git / blobdiff