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Commit | Line | Data |
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aa6bb135 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
d02b48c6 | 3 | * |
aa6bb135 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
ec577822 | 12 | #include <openssl/rand.h> |
3c27208f | 13 | #include <openssl/rsa.h> |
ec577822 BM |
14 | #include <openssl/evp.h> |
15 | #include <openssl/objects.h> | |
16 | #include <openssl/x509.h> | |
d02b48c6 | 17 | |
0f113f3e MC |
18 | int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, |
19 | unsigned char **ek, int *ekl, unsigned char *iv, | |
20 | EVP_PKEY **pubk, int npubk) | |
21 | { | |
22 | unsigned char key[EVP_MAX_KEY_LENGTH]; | |
23 | int i; | |
24 | ||
25 | if (type) { | |
846ec07d | 26 | EVP_CIPHER_CTX_reset(ctx); |
0f113f3e MC |
27 | if (!EVP_EncryptInit_ex(ctx, type, NULL, NULL, NULL)) |
28 | return 0; | |
29 | } | |
30 | if ((npubk <= 0) || !pubk) | |
31 | return 1; | |
32 | if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0) | |
33 | return 0; | |
266483d2 MC |
34 | if (EVP_CIPHER_CTX_iv_length(ctx) |
35 | && RAND_bytes(iv, EVP_CIPHER_CTX_iv_length(ctx)) <= 0) | |
36 | return 0; | |
d02b48c6 | 37 | |
0f113f3e MC |
38 | if (!EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv)) |
39 | return 0; | |
58964a49 | 40 | |
0f113f3e MC |
41 | for (i = 0; i < npubk; i++) { |
42 | ekl[i] = | |
43 | EVP_PKEY_encrypt_old(ek[i], key, EVP_CIPHER_CTX_key_length(ctx), | |
44 | pubk[i]); | |
45 | if (ekl[i] <= 0) | |
46 | return (-1); | |
47 | } | |
48 | return (npubk); | |
49 | } | |
d02b48c6 | 50 | |
1d97c843 | 51 | /*- MACRO |
d02b48c6 RE |
52 | void EVP_SealUpdate(ctx,out,outl,in,inl) |
53 | EVP_CIPHER_CTX *ctx; | |
54 | unsigned char *out; | |
55 | int *outl; | |
56 | unsigned char *in; | |
57 | int inl; | |
0f113f3e MC |
58 | { |
59 | EVP_EncryptUpdate(ctx,out,outl,in,inl); | |
60 | } | |
d02b48c6 RE |
61 | */ |
62 | ||
e9ba6963 | 63 | int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) |
0f113f3e MC |
64 | { |
65 | int i; | |
66 | i = EVP_EncryptFinal_ex(ctx, out, outl); | |
67 | if (i) | |
68 | i = EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, NULL); | |
69 | return i; | |
70 | } |