| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/rsa/rsa_saos.c |
| Source code | Switch to Preprocessed file |
| Line | Source | Count | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | /* | - | ||||||
| 2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. | - | ||||||
| 3 | * | - | ||||||
| 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 | - | ||||||
| 8 | */ | - | ||||||
| 9 | - | |||||||
| 10 | #include <stdio.h> | - | ||||||
| 11 | #include "internal/cryptlib.h" | - | ||||||
| 12 | #include <openssl/bn.h> | - | ||||||
| 13 | #include <openssl/rsa.h> | - | ||||||
| 14 | #include <openssl/objects.h> | - | ||||||
| 15 | #include <openssl/x509.h> | - | ||||||
| 16 | - | |||||||
| 17 | int RSA_sign_ASN1_OCTET_STRING(int type, | - | ||||||
| 18 | const unsigned char *m, unsigned int m_len, | - | ||||||
| 19 | unsigned char *sigret, unsigned int *siglen, | - | ||||||
| 20 | RSA *rsa) | - | ||||||
| 21 | { | - | ||||||
| 22 | ASN1_OCTET_STRING sig; | - | ||||||
| 23 | int i, j, ret = 1; | - | ||||||
| 24 | unsigned char *p, *s; | - | ||||||
| 25 | - | |||||||
| 26 | sig.type = V_ASN1_OCTET_STRING; | - | ||||||
| 27 | sig.length = m_len; | - | ||||||
| 28 | sig.data = (unsigned char *)m; | - | ||||||
| 29 | - | |||||||
| 30 | i = i2d_ASN1_OCTET_STRING(&sig, NULL); | - | ||||||
| 31 | j = RSA_size(rsa); | - | ||||||
| 32 | if (i > (j - RSA_PKCS1_PADDING_SIZE)) {
| 0 | ||||||
| 33 | RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING, | - | ||||||
| 34 | RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY); | - | ||||||
| 35 | return 0; never executed: return 0; | 0 | ||||||
| 36 | } | - | ||||||
| 37 | s = OPENSSL_malloc((unsigned int)j + 1); | - | ||||||
| 38 | if (s == NULL) {
| 0 | ||||||
| 39 | RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE); | - | ||||||
| 40 | return 0; never executed: return 0; | 0 | ||||||
| 41 | } | - | ||||||
| 42 | p = s; | - | ||||||
| 43 | i2d_ASN1_OCTET_STRING(&sig, &p); | - | ||||||
| 44 | i = RSA_private_encrypt(i, s, sigret, rsa, RSA_PKCS1_PADDING); | - | ||||||
| 45 | if (i <= 0)
| 0 | ||||||
| 46 | ret = 0; never executed: ret = 0; | 0 | ||||||
| 47 | else | - | ||||||
| 48 | *siglen = i; never executed: *siglen = i; | 0 | ||||||
| 49 | - | |||||||
| 50 | OPENSSL_clear_free(s, (unsigned int)j + 1); | - | ||||||
| 51 | return ret; never executed: return ret; | 0 | ||||||
| 52 | } | - | ||||||
| 53 | - | |||||||
| 54 | int RSA_verify_ASN1_OCTET_STRING(int dtype, | - | ||||||
| 55 | const unsigned char *m, | - | ||||||
| 56 | unsigned int m_len, unsigned char *sigbuf, | - | ||||||
| 57 | unsigned int siglen, RSA *rsa) | - | ||||||
| 58 | { | - | ||||||
| 59 | int i, ret = 0; | - | ||||||
| 60 | unsigned char *s; | - | ||||||
| 61 | const unsigned char *p; | - | ||||||
| 62 | ASN1_OCTET_STRING *sig = NULL; | - | ||||||
| 63 | - | |||||||
| 64 | if (siglen != (unsigned int)RSA_size(rsa)) {
| 0 | ||||||
| 65 | RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, | - | ||||||
| 66 | RSA_R_WRONG_SIGNATURE_LENGTH); | - | ||||||
| 67 | return 0; never executed: return 0; | 0 | ||||||
| 68 | } | - | ||||||
| 69 | - | |||||||
| 70 | s = OPENSSL_malloc((unsigned int)siglen); | - | ||||||
| 71 | if (s == NULL) {
| 0 | ||||||
| 72 | RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE); | - | ||||||
| 73 | goto err; never executed: goto err; | 0 | ||||||
| 74 | } | - | ||||||
| 75 | i = RSA_public_decrypt((int)siglen, sigbuf, s, rsa, RSA_PKCS1_PADDING); | - | ||||||
| 76 | - | |||||||
| 77 | if (i <= 0)
| 0 | ||||||
| 78 | goto err; never executed: goto err; | 0 | ||||||
| 79 | - | |||||||
| 80 | p = s; | - | ||||||
| 81 | sig = d2i_ASN1_OCTET_STRING(NULL, &p, (long)i); | - | ||||||
| 82 | if (sig == NULL)
| 0 | ||||||
| 83 | goto err; never executed: goto err; | 0 | ||||||
| 84 | - | |||||||
| 85 | if (((unsigned int)sig->length != m_len) ||
| 0 | ||||||
| 86 | (memcmp(m, sig->data, m_len) != 0)) {
| 0 | ||||||
| 87 | RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, RSA_R_BAD_SIGNATURE); | - | ||||||
| 88 | } else { never executed: end of block | 0 | ||||||
| 89 | ret = 1; | - | ||||||
| 90 | } never executed: end of block | 0 | ||||||
| 91 | err: code before this statement never executed: err: | 0 | ||||||
| 92 | ASN1_OCTET_STRING_free(sig); | - | ||||||
| 93 | OPENSSL_clear_free(s, (unsigned int)siglen); | - | ||||||
| 94 | return ret; never executed: return ret; | 0 | ||||||
| 95 | } | - | ||||||
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