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EVP: Adapt EVP_PKEY Seal and Open for provider keys

Browse Source 
This affects the following function, which can now deal with provider
side keys:

- EVP_SealInit()
- EVP_OpenInit()

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10808)
This commit is contained in:
Richard Levitte 2020-01-11 00:04:56 +01:00
parent 3472082b4b
commit 9420b403b7
6 changed files with 50 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
CHANGES
View File

@ -9,6 +9,12 @@
Changes between 1.1.1 and 3.0.0 [xx XXX xxxx]
*) Deprecated EVP_PKEY_decrypt_old(), please use EVP_PKEY_decrypt_init()
and EVP_PKEY_decrypt() instead.
Deprecated EVP_PKEY_encrypt_old(), please use EVP_PKEY_encrypt_init()
and EVP_PKEY_encrypt() instead.
[Richard Levitte]
*) Enhanced the documentation of EVP_PKEY_size(), EVP_PKEY_bits()
and EVP_PKEY_security_bits(). Especially EVP_PKEY_size() needed
a new formulation to include all the things it can be used for,

6
crypto/evp/build.info
View File

@ -8,7 +8,7 @@ SOURCE[../../libcrypto]=$COMMON\
e_des.c e_bf.c e_idea.c e_des3.c e_camellia.c\
e_rc4.c e_aes.c names.c e_seed.c e_aria.c e_sm4.c \
e_xcbc_d.c e_rc2.c e_cast.c e_rc5.c m_null.c \
p_open.c p_seal.c p_sign.c p_verify.c p_enc.c p_dec.c \
p_open.c p_seal.c p_sign.c p_verify.c \
bio_md.c bio_b64.c bio_enc.c evp_err.c e_null.c \
c_allc.c c_alld.c bio_ok.c \
evp_pkey.c evp_pbe.c p5_crpt.c p5_crpt2.c pbe_scrypt.c \
@ -18,6 +18,10 @@ SOURCE[../../libcrypto]=$COMMON\
pkey_mac.c \
legacy_sha.c
IF[{- !$disabled{deprecated} || $config{api} < 30000 -}]
SOURCE[../../libcrypto]=p_enc.c p_dec.c
ENDIF
IF[{- !$disabled{md2} -}]
SOURCE[../../libcrypto]=legacy_md2.c
ENDIF

33
crypto/evp/p_open.c
View File

@ -23,41 +23,44 @@ int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
EVP_PKEY *priv)
{
unsigned char *key = NULL;
int i, size = 0, ret = 0;
size_t keylen = 0;
int ret = 0;
EVP_PKEY_CTX *pctx = NULL;
if (type) {
EVP_CIPHER_CTX_reset(ctx);
if (!EVP_DecryptInit_ex(ctx, type, NULL, NULL, NULL))
return 0;
goto err;
}
if (priv == NULL)
return 1;
if (EVP_PKEY_id(priv) != EVP_PKEY_RSA) {
EVPerr(EVP_F_EVP_OPENINIT, EVP_R_PUBLIC_KEY_NOT_RSA);
if ((pctx = EVP_PKEY_CTX_new(priv, NULL)) == NULL) {
ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
goto err;
}
size = EVP_PKEY_size(priv);
key = OPENSSL_malloc(size);
if (key == NULL) {
/* ERROR */
EVPerr(EVP_F_EVP_OPENINIT, ERR_R_MALLOC_FAILURE);
if (EVP_PKEY_decrypt_init(pctx) <= 0
|| EVP_PKEY_decrypt(pctx, NULL, &keylen, ek, ekl) <= 0)
goto err;
if ((key = OPENSSL_malloc(keylen)) == NULL) {
ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
goto err;
}
i = EVP_PKEY_decrypt_old(key, ek, ekl, priv);
if ((i <= 0) || !EVP_CIPHER_CTX_set_key_length(ctx, i)) {
/* ERROR */
if (EVP_PKEY_decrypt(pctx, key, &keylen, ek, ekl) <= 0)
goto err;
}
if (!EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv))
if (!EVP_CIPHER_CTX_set_key_length(ctx, keylen)
|| !EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv))
goto err;
ret = 1;
err:
OPENSSL_clear_free(key, size);
EVP_PKEY_CTX_free(pctx);
OPENSSL_clear_free(key, keylen);
return ret;
}

17
crypto/evp/p_seal.c
View File

@ -30,6 +30,7 @@ int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
}
if ((npubk <= 0) || !pubk)
return 1;
if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
return 0;
@ -41,13 +42,19 @@ int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
goto err;
for (i = 0; i < npubk; i++) {
ekl[i] =
EVP_PKEY_encrypt_old(ek[i], key, EVP_CIPHER_CTX_key_length(ctx),
pubk[i]);
if (ekl[i] <= 0) {
rv = -1;
size_t keylen = EVP_CIPHER_CTX_key_length(ctx);
EVP_PKEY_CTX *pctx = NULL;
if ((pctx = EVP_PKEY_CTX_new(pubk[i], NULL)) == NULL) {
ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
goto err;
}
if (EVP_PKEY_encrypt_init(pctx) <= 0
|| EVP_PKEY_encrypt(pctx, ek[i], &keylen, key, keylen) <= 0)
goto err;
ekl[i] = (int)keylen;
EVP_PKEY_CTX_free(pctx);
}
rv = npubk;
err:

13
include/openssl/evp.h
View File

@ -1089,12 +1089,13 @@ void EVP_MAC_names_do_all(const EVP_MAC *mac,
void *data);
/* PKEY stuff */
int EVP_PKEY_decrypt_old(unsigned char *dec_key,
const unsigned char *enc_key, int enc_key_len,
EVP_PKEY *private_key);
int EVP_PKEY_encrypt_old(unsigned char *enc_key,
const unsigned char *key, int key_len,
EVP_PKEY *pub_key);
DEPRECATEDIN_3_0(int EVP_PKEY_decrypt_old(unsigned char *dec_key,
const unsigned char *enc_key,
int enc_key_len,
EVP_PKEY *private_key))
DEPRECATEDIN_3_0(int EVP_PKEY_encrypt_old(unsigned char *enc_key,
const unsigned char *key,
int key_len, EVP_PKEY *pub_key))
int EVP_PKEY_type(int type);
int EVP_PKEY_id(const EVP_PKEY *pkey);
int EVP_PKEY_base_id(const EVP_PKEY *pkey);

4
util/libcrypto.num
View File

@ -1044,7 +1044,7 @@ X509_VERIFY_PARAM_set_flags 1070 3_0_0 EXIST::FUNCTION:
X509_EXTENSION_set_data 1071 3_0_0 EXIST::FUNCTION:
ENGINE_get_EC 1072 3_0_0 EXIST::FUNCTION:ENGINE
ASN1_STRING_copy 1073 3_0_0 EXIST::FUNCTION:
EVP_PKEY_encrypt_old 1074 3_0_0 EXIST::FUNCTION:
EVP_PKEY_encrypt_old 1074 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0
OPENSSL_LH_free 1075 3_0_0 EXIST::FUNCTION:
DES_is_weak_key 1076 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0,DES
EVP_PKEY_verify 1077 3_0_0 EXIST::FUNCTION:
@ -3606,7 +3606,7 @@ X509_VERIFY_PARAM_inherit 3685 3_0_0 EXIST::FUNCTION:
EC_GROUP_get_curve_name 3686 3_0_0 EXIST::FUNCTION:EC
RSA_print 3687 3_0_0 EXIST::FUNCTION:RSA
i2d_ASN1_BMPSTRING 3688 3_0_0 EXIST::FUNCTION:
EVP_PKEY_decrypt_old 3689 3_0_0 EXIST::FUNCTION:
EVP_PKEY_decrypt_old 3689 3_0_0 EXIST::FUNCTION:DEPRECATEDIN_3_0
ASN1_UTCTIME_cmp_time_t 3690 3_0_0 EXIST::FUNCTION:
X509_VERIFY_PARAM_set1_ip 3691 3_0_0 EXIST::FUNCTION:
OTHERNAME_free 3692 3_0_0 EXIST::FUNCTION: