diff options
Diffstat (limited to 'src/lib/libcrypto/evp/p_seal.c')
| -rw-r--r-- | src/lib/libcrypto/evp/p_seal.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/lib/libcrypto/evp/p_seal.c b/src/lib/libcrypto/evp/p_seal.c new file mode 100644 index 0000000000..8cc8fcb0bd --- /dev/null +++ b/src/lib/libcrypto/evp/p_seal.c | |||
| @@ -0,0 +1,115 @@ | |||
| 1 | /* crypto/evp/p_seal.c */ | ||
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * This package is an SSL implementation written | ||
| 6 | * by Eric Young (eay@cryptsoft.com). | ||
| 7 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 8 | * | ||
| 9 | * This library is free for commercial and non-commercial use as long as | ||
| 10 | * the following conditions are aheared to. The following conditions | ||
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 13 | * included with this distribution is covered by the same copyright terms | ||
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 15 | * | ||
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 17 | * the code are not to be removed. | ||
| 18 | * If this package is used in a product, Eric Young should be given attribution | ||
| 19 | * as the author of the parts of the library used. | ||
| 20 | * This can be in the form of a textual message at program startup or | ||
| 21 | * in documentation (online or textual) provided with the package. | ||
| 22 | * | ||
| 23 | * Redistribution and use in source and binary forms, with or without | ||
| 24 | * modification, are permitted provided that the following conditions | ||
| 25 | * are met: | ||
| 26 | * 1. Redistributions of source code must retain the copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer. | ||
| 28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 29 | * notice, this list of conditions and the following disclaimer in the | ||
| 30 | * documentation and/or other materials provided with the distribution. | ||
| 31 | * 3. All advertising materials mentioning features or use of this software | ||
| 32 | * must display the following acknowledgement: | ||
| 33 | * "This product includes cryptographic software written by | ||
| 34 | * Eric Young (eay@cryptsoft.com)" | ||
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 36 | * being used are not cryptographic related :-). | ||
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 38 | * the apps directory (application code) you must include an acknowledgement: | ||
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 40 | * | ||
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 51 | * SUCH DAMAGE. | ||
| 52 | * | ||
| 53 | * The licence and distribution terms for any publically available version or | ||
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 55 | * copied and put under another distribution licence | ||
| 56 | * [including the GNU Public Licence.] | ||
| 57 | */ | ||
| 58 | |||
| 59 | #include <stdio.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #include <openssl/rand.h> | ||
| 62 | #ifndef OPENSSL_NO_RSA | ||
| 63 | #include <openssl/rsa.h> | ||
| 64 | #endif | ||
| 65 | #include <openssl/evp.h> | ||
| 66 | #include <openssl/objects.h> | ||
| 67 | #include <openssl/x509.h> | ||
| 68 | |||
| 69 | int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, unsigned char **ek, | ||
| 70 | int *ekl, unsigned char *iv, EVP_PKEY **pubk, int npubk) | ||
| 71 | { | ||
| 72 | unsigned char key[EVP_MAX_KEY_LENGTH]; | ||
| 73 | int i; | ||
| 74 | |||
| 75 | if(type) { | ||
| 76 | EVP_CIPHER_CTX_init(ctx); | ||
| 77 | if(!EVP_EncryptInit_ex(ctx,type,NULL,NULL,NULL)) return 0; | ||
| 78 | } | ||
| 79 | if ((npubk <= 0) || !pubk) | ||
| 80 | return 1; | ||
| 81 | if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0) | ||
| 82 | return 0; | ||
| 83 | if (EVP_CIPHER_CTX_iv_length(ctx)) | ||
| 84 | RAND_pseudo_bytes(iv,EVP_CIPHER_CTX_iv_length(ctx)); | ||
| 85 | |||
| 86 | if(!EVP_EncryptInit_ex(ctx,NULL,NULL,key,iv)) return 0; | ||
| 87 | |||
| 88 | for (i=0; i<npubk; i++) | ||
| 89 | { | ||
| 90 | ekl[i]=EVP_PKEY_encrypt(ek[i],key,EVP_CIPHER_CTX_key_length(ctx), | ||
| 91 | pubk[i]); | ||
| 92 | if (ekl[i] <= 0) return(-1); | ||
| 93 | } | ||
| 94 | return(npubk); | ||
| 95 | } | ||
| 96 | |||
| 97 | /* MACRO | ||
| 98 | void EVP_SealUpdate(ctx,out,outl,in,inl) | ||
| 99 | EVP_CIPHER_CTX *ctx; | ||
| 100 | unsigned char *out; | ||
| 101 | int *outl; | ||
| 102 | unsigned char *in; | ||
| 103 | int inl; | ||
| 104 | { | ||
| 105 | EVP_EncryptUpdate(ctx,out,outl,in,inl); | ||
| 106 | } | ||
| 107 | */ | ||
| 108 | |||
| 109 | int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) | ||
| 110 | { | ||
| 111 | int i; | ||
| 112 | i = EVP_EncryptFinal_ex(ctx,out,outl); | ||
| 113 | EVP_EncryptInit_ex(ctx,NULL,NULL,NULL,NULL); | ||
| 114 | return i; | ||
| 115 | } | ||
