/*
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2021 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
*/
+/*
+ * EVP _meth_ APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
#include <stdio.h>
+#include <string.h>
+#include "internal/e_os.h" /* strcasecmp */
#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/params.h>
#include <openssl/core_names.h>
+#include <openssl/rsa.h>
#include <openssl/dh.h>
-#include "internal/evp_int.h"
+#include <openssl/ec.h>
+#include "crypto/evp.h"
#include "internal/provider.h"
-#include "evp_locl.h"
+#include "evp_local.h"
+
+#if !defined(FIPS_MODULE)
+# include "crypto/asn1.h"
-#if !defined(FIPS_MODE)
int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
{
- int ret;
- const EVP_CIPHER *cipher = c->cipher;
+ return evp_cipher_param_to_asn1_ex(c, type, NULL);
+}
- if (cipher->prov != NULL) {
- /*
- * The cipher has come from a provider and won't have the default flags.
- * Find the implicit form so we can check the flags.
- * TODO(3.0): This won't work for 3rd party ciphers we know nothing about
- * We'll need to think of something else for those.
- */
- cipher = EVP_get_cipherbynid(cipher->nid);
- if (cipher == NULL) {
- EVPerr(EVP_F_EVP_CIPHER_PARAM_TO_ASN1, ASN1_R_UNSUPPORTED_CIPHER);
+int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
+{
+ return evp_cipher_asn1_to_param_ex(c, type, NULL);
+}
+
+int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *ctx, ASN1_TYPE *type)
+{
+ int i = 0;
+ unsigned int l;
+
+ if (type != NULL) {
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+
+ l = EVP_CIPHER_CTX_get_iv_length(ctx);
+ if (!ossl_assert(l <= sizeof(iv)))
+ return -1;
+ i = ASN1_TYPE_get_octetstring(type, iv, l);
+ if (i != (int)l)
+ return -1;
+
+ if (!EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, -1))
return -1;
- }
}
+ return i;
+}
- if (cipher->set_asn1_parameters != NULL)
+int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
+{
+ int i = 0;
+ unsigned int j;
+ unsigned char *oiv = NULL;
+
+ if (type != NULL) {
+ oiv = (unsigned char *)EVP_CIPHER_CTX_original_iv(c);
+ j = EVP_CIPHER_CTX_get_iv_length(c);
+ OPENSSL_assert(j <= sizeof(c->iv));
+ i = ASN1_TYPE_set_octetstring(type, oiv, j);
+ }
+ return i;
+}
+
+int evp_cipher_param_to_asn1_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
+ evp_cipher_aead_asn1_params *asn1_params)
+{
+ int ret = -1; /* Assume the worst */
+ const EVP_CIPHER *cipher = c->cipher;
+
+ /*
+ * For legacy implementations, we detect custom AlgorithmIdentifier
+ * parameter handling by checking if the function pointer
+ * cipher->set_asn1_parameters is set. We know that this pointer
+ * is NULL for provided implementations.
+ *
+ * Otherwise, for any implementation, we check the flag
+ * EVP_CIPH_FLAG_CUSTOM_ASN1. If it isn't set, we apply
+ * default AI parameter extraction.
+ *
+ * Otherwise, for provided implementations, we convert |type| to
+ * a DER encoded blob and pass to the implementation in OSSL_PARAM
+ * form.
+ *
+ * If none of the above applies, this operation is unsupported.
+ */
+ if (cipher->set_asn1_parameters != NULL) {
ret = cipher->set_asn1_parameters(c, type);
- else if (cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
- switch (EVP_CIPHER_mode(cipher)) {
+ } else if ((EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_CUSTOM_ASN1) == 0) {
+ switch (EVP_CIPHER_get_mode(cipher)) {
case EVP_CIPH_WRAP_MODE:
- if (EVP_CIPHER_nid(cipher) == NID_id_smime_alg_CMS3DESwrap)
+ if (EVP_CIPHER_is_a(cipher, SN_id_smime_alg_CMS3DESwrap))
ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
ret = 1;
break;
case EVP_CIPH_GCM_MODE:
+ ret = evp_cipher_set_asn1_aead_params(c, type, asn1_params);
+ break;
+
case EVP_CIPH_CCM_MODE:
case EVP_CIPH_XTS_MODE:
case EVP_CIPH_OCB_MODE:
default:
ret = EVP_CIPHER_set_asn1_iv(c, type);
}
- } else
- ret = -1;
- if (ret <= 0)
- EVPerr(EVP_F_EVP_CIPHER_PARAM_TO_ASN1, ret == -2 ?
- ASN1_R_UNSUPPORTED_CIPHER :
- EVP_R_CIPHER_PARAMETER_ERROR);
+ } else if (cipher->prov != NULL) {
+ OSSL_PARAM params[3], *p = params;
+ unsigned char *der = NULL, *derp;
+
+ /*
+ * We make two passes, the first to get the appropriate buffer size,
+ * and the second to get the actual value.
+ */
+ *p++ = OSSL_PARAM_construct_octet_string(
+ OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS,
+ NULL, 0);
+ *p = OSSL_PARAM_construct_end();
+
+ if (!EVP_CIPHER_CTX_get_params(c, params))
+ goto err;
+
+ /* ... but, we should get a return size too! */
+ if (OSSL_PARAM_modified(params)
+ && params[0].return_size != 0
+ && (der = OPENSSL_malloc(params[0].return_size)) != NULL) {
+ params[0].data = der;
+ params[0].data_size = params[0].return_size;
+ OSSL_PARAM_set_all_unmodified(params);
+ derp = der;
+ if (EVP_CIPHER_CTX_get_params(c, params)
+ && OSSL_PARAM_modified(params)
+ && d2i_ASN1_TYPE(&type, (const unsigned char **)&derp,
+ params[0].return_size) != NULL) {
+ ret = 1;
+ }
+ OPENSSL_free(der);
+ }
+ } else {
+ ret = -2;
+ }
+
+ err:
+ if (ret == -2)
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_CIPHER);
+ else if (ret <= 0)
+ ERR_raise(ERR_LIB_EVP, EVP_R_CIPHER_PARAMETER_ERROR);
if (ret < -1)
ret = -1;
return ret;
}
-int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
+int evp_cipher_asn1_to_param_ex(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
+ evp_cipher_aead_asn1_params *asn1_params)
{
- int ret;
+ int ret = -1; /* Assume the worst */
const EVP_CIPHER *cipher = c->cipher;
- if (cipher->prov != NULL) {
- /*
- * The cipher has come from a provider and won't have the default flags.
- * Find the implicit form so we can check the flags.
- */
- cipher = EVP_get_cipherbynid(cipher->nid);
- if (cipher == NULL)
- return -1;
- }
-
- if (cipher->get_asn1_parameters != NULL)
+ /*
+ * For legacy implementations, we detect custom AlgorithmIdentifier
+ * parameter handling by checking if there the function pointer
+ * cipher->get_asn1_parameters is set. We know that this pointer
+ * is NULL for provided implementations.
+ *
+ * Otherwise, for any implementation, we check the flag
+ * EVP_CIPH_FLAG_CUSTOM_ASN1. If it isn't set, we apply
+ * default AI parameter creation.
+ *
+ * Otherwise, for provided implementations, we get the AI parameter
+ * in DER encoded form from the implementation by requesting the
+ * appropriate OSSL_PARAM and converting the result to a ASN1_TYPE.
+ *
+ * If none of the above applies, this operation is unsupported.
+ */
+ if (cipher->get_asn1_parameters != NULL) {
ret = cipher->get_asn1_parameters(c, type);
- else if (cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
- switch (EVP_CIPHER_mode(cipher)) {
-
+ } else if ((EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_CUSTOM_ASN1) == 0) {
+ switch (EVP_CIPHER_get_mode(cipher)) {
case EVP_CIPH_WRAP_MODE:
ret = 1;
break;
case EVP_CIPH_GCM_MODE:
+ ret = evp_cipher_get_asn1_aead_params(c, type, asn1_params);
+ break;
+
case EVP_CIPH_CCM_MODE:
case EVP_CIPH_XTS_MODE:
case EVP_CIPH_OCB_MODE:
default:
ret = EVP_CIPHER_get_asn1_iv(c, type);
- break;
}
- } else
- ret = -1;
- if (ret <= 0)
- EVPerr(EVP_F_EVP_CIPHER_ASN1_TO_PARAM, ret == -2 ?
- EVP_R_UNSUPPORTED_CIPHER :
- EVP_R_CIPHER_PARAMETER_ERROR);
+ } else if (cipher->prov != NULL) {
+ OSSL_PARAM params[3], *p = params;
+ unsigned char *der = NULL;
+ int derl = -1;
+
+ if ((derl = i2d_ASN1_TYPE(type, &der)) >= 0) {
+ *p++ =
+ OSSL_PARAM_construct_octet_string(
+ OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS,
+ der, (size_t)derl);
+ *p = OSSL_PARAM_construct_end();
+ if (EVP_CIPHER_CTX_set_params(c, params))
+ ret = 1;
+ OPENSSL_free(der);
+ }
+ } else {
+ ret = -2;
+ }
+
+ if (ret == -2)
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_CIPHER);
+ else if (ret <= 0)
+ ERR_raise(ERR_LIB_EVP, EVP_R_CIPHER_PARAMETER_ERROR);
if (ret < -1)
ret = -1;
return ret;
}
-int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *ctx, ASN1_TYPE *type)
+int evp_cipher_get_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
+ evp_cipher_aead_asn1_params *asn1_params)
{
int i = 0;
- unsigned int l;
+ long tl;
+ unsigned char iv[EVP_MAX_IV_LENGTH];
- if (type != NULL) {
- unsigned char iv[EVP_MAX_IV_LENGTH];
+ if (type == NULL || asn1_params == NULL)
+ return 0;
- l = EVP_CIPHER_CTX_iv_length(ctx);
- if (!ossl_assert(l <= sizeof(iv)))
- return -1;
- i = ASN1_TYPE_get_octetstring(type, iv, l);
- if (i != (int)l)
- return -1;
+ i = ossl_asn1_type_get_octetstring_int(type, &tl, NULL, EVP_MAX_IV_LENGTH);
+ if (i <= 0)
+ return -1;
+ ossl_asn1_type_get_octetstring_int(type, &tl, iv, i);
+
+ memcpy(asn1_params->iv, iv, i);
+ asn1_params->iv_len = i;
- if (!EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, -1))
- return -1;
- }
return i;
}
-int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
+int evp_cipher_set_asn1_aead_params(EVP_CIPHER_CTX *c, ASN1_TYPE *type,
+ evp_cipher_aead_asn1_params *asn1_params)
{
- int i = 0;
- unsigned int j;
+ if (type == NULL || asn1_params == NULL)
+ return 0;
- if (type != NULL) {
- j = EVP_CIPHER_CTX_iv_length(c);
- OPENSSL_assert(j <= sizeof(c->iv));
- i = ASN1_TYPE_set_octetstring(type, c->oiv, j);
- }
- return i;
+ return ossl_asn1_type_set_octetstring_int(type, asn1_params->tag_len,
+ asn1_params->iv,
+ asn1_params->iv_len);
}
-#endif /* !defined(FIPS_MODE) */
+#endif /* !defined(FIPS_MODULE) */
/* Convert the various cipher NIDs and dummies to a proper OID NID */
-int EVP_CIPHER_type(const EVP_CIPHER *ctx)
+int EVP_CIPHER_get_type(const EVP_CIPHER *cipher)
{
int nid;
- nid = EVP_CIPHER_nid(ctx);
+ nid = EVP_CIPHER_get_nid(cipher);
switch (nid) {
return NID_des_cfb64;
default:
-#ifdef FIPS_MODE
+#ifdef FIPS_MODULE
return NID_undef;
#else
{
}
}
-int EVP_CIPHER_block_size(const EVP_CIPHER *cipher)
-{
- int ok;
- size_t v = cipher->block_size;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
-
- params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_BLOCK_SIZE, &v);
- ok = evp_do_ciph_getparams(cipher, params);
+int evp_cipher_cache_constants(EVP_CIPHER *cipher)
+{
+ int ok, aead = 0, custom_iv = 0, cts = 0, multiblock = 0, randkey = 0;
+ size_t ivlen = 0;
+ size_t blksz = 0;
+ size_t keylen = 0;
+ unsigned int mode = 0;
+ OSSL_PARAM params[10];
+
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_BLOCK_SIZE, &blksz);
+ params[1] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &ivlen);
+ params[2] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &keylen);
+ params[3] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_MODE, &mode);
+ params[4] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_AEAD, &aead);
+ params[5] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_CUSTOM_IV,
+ &custom_iv);
+ params[6] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_CTS, &cts);
+ params[7] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK,
+ &multiblock);
+ params[8] = OSSL_PARAM_construct_int(OSSL_CIPHER_PARAM_HAS_RAND_KEY,
+ &randkey);
+ params[9] = OSSL_PARAM_construct_end();
+ ok = evp_do_ciph_getparams(cipher, params) > 0;
+ if (ok) {
+ cipher->block_size = blksz;
+ cipher->iv_len = ivlen;
+ cipher->key_len = keylen;
+ cipher->flags = mode;
+ if (aead)
+ cipher->flags |= EVP_CIPH_FLAG_AEAD_CIPHER;
+ if (custom_iv)
+ cipher->flags |= EVP_CIPH_CUSTOM_IV;
+ if (cts)
+ cipher->flags |= EVP_CIPH_FLAG_CTS;
+ if (multiblock)
+ cipher->flags |= EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK;
+ if (cipher->ccipher != NULL)
+ cipher->flags |= EVP_CIPH_FLAG_CUSTOM_CIPHER;
+ if (randkey)
+ cipher->flags |= EVP_CIPH_RAND_KEY;
+ if (OSSL_PARAM_locate_const(EVP_CIPHER_gettable_ctx_params(cipher),
+ OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS))
+ cipher->flags |= EVP_CIPH_FLAG_CUSTOM_ASN1;
+ }
+ return ok;
+}
- return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+int EVP_CIPHER_get_block_size(const EVP_CIPHER *cipher)
+{
+ return cipher->block_size;
}
-int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
+int EVP_CIPHER_CTX_get_block_size(const EVP_CIPHER_CTX *ctx)
{
- return EVP_CIPHER_block_size(ctx->cipher);
+ return EVP_CIPHER_get_block_size(ctx->cipher);
}
int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e)
const unsigned char *in, unsigned int inl)
{
if (ctx->cipher->prov != NULL) {
- size_t outl = 0; /* ignored */
- int blocksize = EVP_CIPHER_CTX_block_size(ctx);
+ /*
+ * If the provided implementation has a ccipher function, we use it,
+ * and translate its return value like this: 0 => -1, 1 => outlen
+ *
+ * Otherwise, we call the cupdate function if in != NULL, or cfinal
+ * if in == NULL. Regardless of which, we return what we got.
+ */
+ int ret = -1;
+ size_t outl = 0;
+ size_t blocksize = EVP_CIPHER_CTX_get_block_size(ctx);
if (ctx->cipher->ccipher != NULL)
- return
- ctx->cipher->ccipher(ctx->provctx, out, &outl,
- inl + (blocksize == 1 ? 0 : blocksize),
- in, (size_t)inl);
- return 0;
+ ret = ctx->cipher->ccipher(ctx->algctx, out, &outl,
+ inl + (blocksize == 1 ? 0 : blocksize),
+ in, (size_t)inl)
+ ? (int)outl : -1;
+ else if (in != NULL)
+ ret = ctx->cipher->cupdate(ctx->algctx, out, &outl,
+ inl + (blocksize == 1 ? 0 : blocksize),
+ in, (size_t)inl);
+ else
+ ret = ctx->cipher->cfinal(ctx->algctx, out, &outl,
+ blocksize == 1 ? 0 : blocksize);
+
+ return ret;
}
return ctx->cipher->do_cipher(ctx, out, in, inl);
}
+#ifndef OPENSSL_NO_DEPRECATED_3_0
const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
{
+ if (ctx == NULL)
+ return NULL;
return ctx->cipher;
}
+#endif
-int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx)
+const EVP_CIPHER *EVP_CIPHER_CTX_get0_cipher(const EVP_CIPHER_CTX *ctx)
{
- return ctx->encrypt;
+ if (ctx == NULL)
+ return NULL;
+ return ctx->cipher;
}
-unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
+EVP_CIPHER *EVP_CIPHER_CTX_get1_cipher(EVP_CIPHER_CTX *ctx)
{
- int ok;
- unsigned long v = cipher->flags;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ EVP_CIPHER *cipher;
- params[0] = OSSL_PARAM_construct_ulong(OSSL_CIPHER_PARAM_FLAGS, &v);
- ok = evp_do_ciph_getparams(cipher, params);
+ if (ctx == NULL)
+ return NULL;
+ cipher = (EVP_CIPHER *)ctx->cipher;
+ if (!EVP_CIPHER_up_ref(cipher))
+ return NULL;
+ return cipher;
+}
+
+int EVP_CIPHER_CTX_is_encrypting(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->encrypt;
+}
- return ok != 0 ? v : 0;
+unsigned long EVP_CIPHER_get_flags(const EVP_CIPHER *cipher)
+{
+ return cipher->flags;
}
void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
return old_cipher_data;
}
-int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
+int EVP_CIPHER_get_iv_length(const EVP_CIPHER *cipher)
{
- int ok;
- size_t v = cipher->iv_len;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
-
- params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v);
- ok = evp_do_ciph_getparams(cipher, params);
-
- return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+ return cipher->iv_len;
}
-int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
+int EVP_CIPHER_CTX_get_iv_length(const EVP_CIPHER_CTX *ctx)
{
- int rv, len = EVP_CIPHER_iv_length(ctx->cipher);
- size_t v = len;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ if (ctx->iv_len < 0) {
+ int rv, len = EVP_CIPHER_get_iv_length(ctx->cipher);
+ size_t v = len;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
- params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v);
- rv = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
- if (rv == EVP_CTRL_RET_UNSUPPORTED)
- goto legacy;
- return rv != 0 ? (int)v : -1;
- /* TODO (3.0) Remove legacy support */
-legacy:
- if ((EVP_CIPHER_flags(ctx->cipher) & EVP_CIPH_CUSTOM_IV_LENGTH) != 0) {
- rv = EVP_CIPHER_CTX_ctrl((EVP_CIPHER_CTX *)ctx, EVP_CTRL_GET_IVLEN,
- 0, &len);
- return (rv == 1) ? len : -1;
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_IVLEN, &v);
+ rv = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
+ if (rv != EVP_CTRL_RET_UNSUPPORTED) {
+ if (rv <= 0)
+ return -1;
+ len = (int)v;
+ }
+ /* Code below to be removed when legacy support is dropped. */
+ else if ((EVP_CIPHER_get_flags(ctx->cipher)
+ & EVP_CIPH_CUSTOM_IV_LENGTH) != 0) {
+ rv = EVP_CIPHER_CTX_ctrl((EVP_CIPHER_CTX *)ctx, EVP_CTRL_GET_IVLEN,
+ 0, &len);
+ if (rv <= 0)
+ return -1;
+ }
+ /*-
+ * Casting away the const is annoying but required here. We need to
+ * cache the result for performance reasons.
+ */
+ ((EVP_CIPHER_CTX *)ctx)->iv_len = len;
}
- return len;
+ return ctx->iv_len;
}
-int EVP_CIPHER_CTX_tag_length(const EVP_CIPHER_CTX *ctx)
+int EVP_CIPHER_CTX_get_tag_length(const EVP_CIPHER_CTX *ctx)
{
int ret;
size_t v = 0;
OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_AEAD_TAGLEN, &v);
- ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ ret = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
return ret == 1 ? (int)v : 0;
}
+#ifndef OPENSSL_NO_DEPRECATED_3_0
const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx)
{
- return ctx->oiv;
+ int ok;
+ const unsigned char *v = ctx->oiv;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] =
+ OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV,
+ (void **)&v, sizeof(ctx->oiv));
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
+
+ return ok != 0 ? v : NULL;
}
/*
OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
params[0] =
- OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV, (void **)&v,
- sizeof(ctx->iv));
- ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV,
+ (void **)&v, sizeof(ctx->iv));
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
return ok != 0 ? v : NULL;
}
OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
params[0] =
- OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_IV, (void **)&v,
- sizeof(ctx->iv));
- ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ OSSL_PARAM_construct_octet_ptr(OSSL_CIPHER_PARAM_UPDATED_IV,
+ (void **)&v, sizeof(ctx->iv));
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
return ok != 0 ? v : NULL;
}
+#endif /* OPENSSL_NO_DEPRECATED_3_0_0 */
+
+int EVP_CIPHER_CTX_get_updated_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len)
+{
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_UPDATED_IV, buf, len);
+ return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
+}
+
+int EVP_CIPHER_CTX_get_original_iv(EVP_CIPHER_CTX *ctx, void *buf, size_t len)
+{
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_CIPHER_PARAM_IV, buf, len);
+ return evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
+}
unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx)
{
return ctx->buf;
}
-int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx)
+int EVP_CIPHER_CTX_get_num(const EVP_CIPHER_CTX *ctx)
{
int ok;
unsigned int v = (unsigned int)ctx->num;
OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &v);
- ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
}
OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_NUM, &n);
- ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->provctx, params);
+ ok = evp_do_ciph_ctx_setparams(ctx->cipher, ctx->algctx, params);
if (ok != 0)
ctx->num = (int)n;
return ok != 0;
}
-int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
+int EVP_CIPHER_get_key_length(const EVP_CIPHER *cipher)
{
- int ok;
- size_t v = cipher->key_len;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
-
- params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v);
- ok = evp_do_ciph_getparams(cipher, params);
-
- return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+ return cipher->key_len;
}
-int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
+int EVP_CIPHER_CTX_get_key_length(const EVP_CIPHER_CTX *ctx)
{
- int ok;
- size_t v = ctx->key_len;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ if (ctx->key_len <= 0 && ctx->cipher->prov != NULL) {
+ int ok;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ size_t len;
- params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &v);
- ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->provctx, params);
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_CIPHER_PARAM_KEYLEN, &len);
+ ok = evp_do_ciph_ctx_getparams(ctx->cipher, ctx->algctx, params);
+ if (ok <= 0)
+ return EVP_CTRL_RET_UNSUPPORTED;
- return ok != 0 ? (int)v : EVP_CTRL_RET_UNSUPPORTED;
+ /*-
+ * The if branch should never be taken since EVP_MAX_KEY_LENGTH is
+ * less than INT_MAX but best to be safe.
+ *
+ * Casting away the const is annoying but required here. We need to
+ * cache the result for performance reasons.
+ */
+ if (!OSSL_PARAM_get_int(params, &((EVP_CIPHER_CTX *)ctx)->key_len))
+ return -1;
+ ((EVP_CIPHER_CTX *)ctx)->key_len = (int)len;
+ }
+ return ctx->key_len;
}
-int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
+int EVP_CIPHER_get_nid(const EVP_CIPHER *cipher)
{
return cipher->nid;
}
-int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
+int EVP_CIPHER_CTX_get_nid(const EVP_CIPHER_CTX *ctx)
{
return ctx->cipher->nid;
}
int EVP_CIPHER_is_a(const EVP_CIPHER *cipher, const char *name)
{
- return evp_is_a(cipher->prov, cipher->name_id, name);
+ if (cipher->prov != NULL)
+ return evp_is_a(cipher->prov, cipher->name_id, NULL, name);
+ return evp_is_a(NULL, 0, EVP_CIPHER_get0_name(cipher), name);
}
-const char *EVP_CIPHER_name(const EVP_CIPHER *cipher)
+int evp_cipher_get_number(const EVP_CIPHER *cipher)
{
- if (cipher->prov != NULL)
- return evp_first_name(cipher->prov, cipher->name_id);
-#ifndef FIPS_MODE
- return OBJ_nid2sn(EVP_CIPHER_nid(cipher));
+ return cipher->name_id;
+}
+
+const char *EVP_CIPHER_get0_name(const EVP_CIPHER *cipher)
+{
+ if (cipher->type_name != NULL)
+ return cipher->type_name;
+#ifndef FIPS_MODULE
+ return OBJ_nid2sn(EVP_CIPHER_get_nid(cipher));
#else
return NULL;
#endif
}
-const OSSL_PROVIDER *EVP_CIPHER_provider(const EVP_CIPHER *cipher)
+const char *EVP_CIPHER_get0_description(const EVP_CIPHER *cipher)
{
- return cipher->prov;
+ if (cipher->description != NULL)
+ return cipher->description;
+#ifndef FIPS_MODULE
+ return OBJ_nid2ln(EVP_CIPHER_get_nid(cipher));
+#else
+ return NULL;
+#endif
}
-int EVP_CIPHER_mode(const EVP_CIPHER *cipher)
+int EVP_CIPHER_names_do_all(const EVP_CIPHER *cipher,
+ void (*fn)(const char *name, void *data),
+ void *data)
{
- int ok;
- unsigned int v = EVP_CIPHER_flags(cipher) & EVP_CIPH_MODE;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ if (cipher->prov != NULL)
+ return evp_names_do_all(cipher->prov, cipher->name_id, fn, data);
- params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_MODE, &v);
- ok = evp_do_ciph_getparams(cipher, params);
+ return 1;
+}
+
+const OSSL_PROVIDER *EVP_CIPHER_get0_provider(const EVP_CIPHER *cipher)
+{
+ return cipher->prov;
+}
- return ok != 0 ? (int)v : 0;
+int EVP_CIPHER_get_mode(const EVP_CIPHER *cipher)
+{
+ return EVP_CIPHER_get_flags(cipher) & EVP_CIPH_MODE;
}
-const char *EVP_MD_name(const EVP_MD *md)
+int EVP_MD_is_a(const EVP_MD *md, const char *name)
{
if (md->prov != NULL)
- return evp_first_name(md->prov, md->name_id);
-#ifndef FIPS_MODE
- return OBJ_nid2sn(EVP_MD_nid(md));
+ return evp_is_a(md->prov, md->name_id, NULL, name);
+ return evp_is_a(NULL, 0, EVP_MD_get0_name(md), name);
+}
+
+int evp_md_get_number(const EVP_MD *md)
+{
+ return md->name_id;
+}
+
+const char *EVP_MD_get0_description(const EVP_MD *md)
+{
+ if (md->description != NULL)
+ return md->description;
+#ifndef FIPS_MODULE
+ return OBJ_nid2ln(EVP_MD_nid(md));
#else
return NULL;
#endif
}
-const OSSL_PROVIDER *EVP_MD_provider(const EVP_MD *md)
+const char *EVP_MD_get0_name(const EVP_MD *md)
{
- return md->prov;
+ if (md == NULL)
+ return NULL;
+ if (md->type_name != NULL)
+ return md->type_name;
+#ifndef FIPS_MODULE
+ return OBJ_nid2sn(EVP_MD_nid(md));
+#else
+ return NULL;
+#endif
}
-int EVP_MD_block_size(const EVP_MD *md)
+int EVP_MD_names_do_all(const EVP_MD *md,
+ void (*fn)(const char *name, void *data),
+ void *data)
{
- int ok;
- size_t v = md->block_size;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
-
- if (md == NULL) {
- EVPerr(EVP_F_EVP_MD_BLOCK_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
- return -1;
- }
+ if (md->prov != NULL)
+ return evp_names_do_all(md->prov, md->name_id, fn, data);
- params[0] = OSSL_PARAM_construct_size_t(OSSL_DIGEST_PARAM_BLOCK_SIZE, &v);
- ok = evp_do_md_getparams(md, params);
+ return 1;
+}
- return ok != 0 ? (int)v : -1;
+const OSSL_PROVIDER *EVP_MD_get0_provider(const EVP_MD *md)
+{
+ return md->prov;
}
-int EVP_MD_type(const EVP_MD *md)
+int EVP_MD_get_type(const EVP_MD *md)
{
return md->type;
}
-int EVP_MD_pkey_type(const EVP_MD *md)
+int EVP_MD_get_pkey_type(const EVP_MD *md)
{
return md->pkey_type;
}
-int EVP_MD_size(const EVP_MD *md)
+int EVP_MD_get_block_size(const EVP_MD *md)
{
- int ok;
- size_t v = md->md_size;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
-
if (md == NULL) {
- EVPerr(EVP_F_EVP_MD_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
+ ERR_raise(ERR_LIB_EVP, EVP_R_MESSAGE_DIGEST_IS_NULL);
return -1;
}
-
- params[0] = OSSL_PARAM_construct_size_t(OSSL_DIGEST_PARAM_SIZE, &v);
- ok = evp_do_md_getparams(md, params);
-
- return ok != 0 ? (int)v : -1;
+ return md->block_size;
}
-unsigned long EVP_MD_flags(const EVP_MD *md)
+int EVP_MD_get_size(const EVP_MD *md)
{
- int ok;
- unsigned long v = md->flags;
- OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
-
- params[0] = OSSL_PARAM_construct_ulong(OSSL_CIPHER_PARAM_FLAGS, &v);
- ok = evp_do_md_getparams(md, params);
+ if (md == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_MESSAGE_DIGEST_IS_NULL);
+ return -1;
+ }
+ return md->md_size;
+}
- return ok != 0 ? v : 0;
+unsigned long EVP_MD_get_flags(const EVP_MD *md)
+{
+ return md->flags;
}
EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type)
if (md != NULL) {
md->type = md_type;
md->pkey_type = pkey_type;
+ md->origin = EVP_ORIG_METH;
}
return md;
}
memcpy(to, md, sizeof(*to));
to->lock = lock;
+ to->origin = EVP_ORIG_METH;
}
return to;
}
+void evp_md_free_int(EVP_MD *md)
+{
+ OPENSSL_free(md->type_name);
+ ossl_provider_free(md->prov);
+ CRYPTO_THREAD_lock_free(md->lock);
+ OPENSSL_free(md);
+}
+
void EVP_MD_meth_free(EVP_MD *md)
{
- EVP_MD_free(md);
+ if (md == NULL || md->origin != EVP_ORIG_METH)
+ return;
+
+ evp_md_free_int(md);
}
+
int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize)
{
if (md->block_size != 0)
return md->md_ctrl;
}
+#ifndef OPENSSL_NO_DEPRECATED_3_0
const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
{
if (ctx == NULL)
return NULL;
return ctx->reqdigest;
}
+#endif
+
+const EVP_MD *EVP_MD_CTX_get0_md(const EVP_MD_CTX *ctx)
+{
+ if (ctx == NULL)
+ return NULL;
+ return ctx->reqdigest;
+}
-EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
+EVP_MD *EVP_MD_CTX_get1_md(EVP_MD_CTX *ctx)
+{
+ EVP_MD *md;
+
+ if (ctx == NULL)
+ return NULL;
+ md = (EVP_MD *)ctx->reqdigest;
+ if (md == NULL || !EVP_MD_up_ref(md))
+ return NULL;
+ return md;
+}
+
+EVP_PKEY_CTX *EVP_MD_CTX_get_pkey_ctx(const EVP_MD_CTX *ctx)
{
return ctx->pctx;
}
-#if !defined(FIPS_MODE)
-/* TODO(3.0): EVP_DigestSign* not yet supported in FIPS module */
+#if !defined(FIPS_MODULE)
void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx)
{
/*
EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
}
}
-#endif /* !defined(FIPS_MODE) */
+#endif /* !defined(FIPS_MODULE) */
-void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
+void *EVP_MD_CTX_get0_md_data(const EVP_MD_CTX *ctx)
{
return ctx->md_data;
}
return (ctx->flags & flags);
}
+static int evp_cipher_ctx_enable_use_bits(EVP_CIPHER_CTX *ctx,
+ unsigned int enable)
+{
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ params[0] = OSSL_PARAM_construct_uint(OSSL_CIPHER_PARAM_USE_BITS, &enable);
+ return EVP_CIPHER_CTX_set_params(ctx, params);
+}
+
void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
{
+ int oldflags = ctx->flags;
+
ctx->flags |= flags;
+ if (((oldflags ^ ctx->flags) & EVP_CIPH_FLAG_LENGTH_BITS) != 0)
+ evp_cipher_ctx_enable_use_bits(ctx, 1);
}
void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
{
+ int oldflags = ctx->flags;
+
ctx->flags &= ~flags;
+ if (((oldflags ^ ctx->flags) & EVP_CIPH_FLAG_LENGTH_BITS) != 0)
+ evp_cipher_ctx_enable_use_bits(ctx, 0);
}
int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
return (ctx->flags & flags);
}
-int EVP_str2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
- void *ctx, int cmd, const char *value)
+int EVP_PKEY_CTX_set_group_name(EVP_PKEY_CTX *ctx, const char *name)
{
- size_t len;
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
- len = strlen(value);
- if (len > INT_MAX)
+ 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 (name == NULL)
return -1;
- return cb(ctx, cmd, (void *)value, len);
+
+ params[0] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
+ (char *)name, 0);
+ return EVP_PKEY_CTX_set_params(ctx, params);
}
-int EVP_hex2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
- void *ctx, int cmd, const char *hex)
+int EVP_PKEY_CTX_get_group_name(EVP_PKEY_CTX *ctx, char *name, size_t namelen)
{
- unsigned char *bin;
- long binlen;
- int rv = -1;
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ OSSL_PARAM *p = params;
- bin = OPENSSL_hexstr2buf(hex, &binlen);
- if (bin == NULL)
- return 0;
- if (binlen <= INT_MAX)
- rv = cb(ctx, cmd, bin, binlen);
- OPENSSL_free(bin);
- return rv;
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ /* There is no legacy support for this */
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ if (name == NULL)
+ return -1;
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
+ name, namelen);
+ if (!EVP_PKEY_CTX_get_params(ctx, params))
+ return -1;
+ return 1;
+}
+
+/*
+ * evp_pkey_keygen() abstracts from the explicit use of B<EVP_PKEY_CTX>
+ * while providing a generic way of generating a new asymmetric key pair
+ * of algorithm type I<name> (e.g., C<RSA> or C<EC>).
+ * The library context I<libctx> and property query I<propq>
+ * are used when fetching algorithms from providers.
+ * The I<params> specify algorithm-specific parameters
+ * such as the RSA modulus size or the name of an EC curve.
+ */
+static EVP_PKEY *evp_pkey_keygen(OSSL_LIB_CTX *libctx, const char *name,
+ const char *propq, const OSSL_PARAM *params)
+{
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name(libctx, name, propq);
+
+ if (ctx != NULL
+ && EVP_PKEY_keygen_init(ctx) > 0
+ && EVP_PKEY_CTX_set_params(ctx, params))
+ (void)EVP_PKEY_generate(ctx, &pkey);
+
+ EVP_PKEY_CTX_free(ctx);
+ return pkey;
+}
+
+EVP_PKEY *EVP_PKEY_Q_keygen(OSSL_LIB_CTX *libctx, const char *propq,
+ const char *type, ...)
+{
+ va_list args;
+ size_t bits;
+ char *name;
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ EVP_PKEY *ret = NULL;
+
+ va_start(args, type);
+
+ if (strcasecmp(type, "RSA") == 0) {
+ bits = va_arg(args, size_t);
+ params[0] = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_BITS, &bits);
+ } else if (strcasecmp(type, "EC") == 0) {
+ name = va_arg(args, char *);
+ params[0] = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
+ name, 0);
+ } else if (strcasecmp(type, "ED25519") != 0
+ && strcasecmp(type, "X25519") != 0
+ && strcasecmp(type, "ED448") != 0
+ && strcasecmp(type, "X448") != 0) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
+ goto end;
+ }
+ ret = evp_pkey_keygen(libctx, type, propq, params);
+
+ end:
+ va_end(args);
+ return ret;
}
projects / thirdparty / openssl.git / blobdiff