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Diffstat (limited to 'src/lib/libcrypto/asn1/p5_pbev2.c')
-rw-r--r--src/lib/libcrypto/asn1/p5_pbev2.c137
1 files changed, 33 insertions, 104 deletions
diff --git a/src/lib/libcrypto/asn1/p5_pbev2.c b/src/lib/libcrypto/asn1/p5_pbev2.c
index 09f4bf6112..91e1c8987d 100644
--- a/src/lib/libcrypto/asn1/p5_pbev2.c
+++ b/src/lib/libcrypto/asn1/p5_pbev2.c
@@ -58,108 +58,27 @@
58 58
59#include <stdio.h> 59#include <stdio.h>
60#include "cryptlib.h" 60#include "cryptlib.h"
61#include <openssl/asn1_mac.h> 61#include <openssl/asn1t.h>
62#include <openssl/x509.h> 62#include <openssl/x509.h>
63#include <openssl/rand.h> 63#include <openssl/rand.h>
64 64
65/* PKCS#5 v2.0 password based encryption structures */ 65/* PKCS#5 v2.0 password based encryption structures */
66 66
67int i2d_PBE2PARAM(PBE2PARAM *a, unsigned char **pp) 67ASN1_SEQUENCE(PBE2PARAM) = {
68{ 68 ASN1_SIMPLE(PBE2PARAM, keyfunc, X509_ALGOR),
69 M_ASN1_I2D_vars(a); 69 ASN1_SIMPLE(PBE2PARAM, encryption, X509_ALGOR)
70 M_ASN1_I2D_len (a->keyfunc, i2d_X509_ALGOR); 70} ASN1_SEQUENCE_END(PBE2PARAM)
71 M_ASN1_I2D_len (a->encryption, i2d_X509_ALGOR);
72
73 M_ASN1_I2D_seq_total ();
74
75 M_ASN1_I2D_put (a->keyfunc, i2d_X509_ALGOR);
76 M_ASN1_I2D_put (a->encryption, i2d_X509_ALGOR);
77
78 M_ASN1_I2D_finish();
79}
80
81PBE2PARAM *PBE2PARAM_new(void)
82{
83 PBE2PARAM *ret=NULL;
84 ASN1_CTX c;
85 M_ASN1_New_Malloc(ret, PBE2PARAM);
86 M_ASN1_New(ret->keyfunc,X509_ALGOR_new);
87 M_ASN1_New(ret->encryption,X509_ALGOR_new);
88 return (ret);
89 M_ASN1_New_Error(ASN1_F_PBE2PARAM_NEW);
90}
91
92PBE2PARAM *d2i_PBE2PARAM(PBE2PARAM **a, unsigned char **pp, long length)
93{
94 M_ASN1_D2I_vars(a,PBE2PARAM *,PBE2PARAM_new);
95 M_ASN1_D2I_Init();
96 M_ASN1_D2I_start_sequence();
97 M_ASN1_D2I_get (ret->keyfunc, d2i_X509_ALGOR);
98 M_ASN1_D2I_get (ret->encryption, d2i_X509_ALGOR);
99 M_ASN1_D2I_Finish(a, PBE2PARAM_free, ASN1_F_D2I_PBE2PARAM);
100}
101 71
102void PBE2PARAM_free (PBE2PARAM *a) 72IMPLEMENT_ASN1_FUNCTIONS(PBE2PARAM)
103{
104 if(a==NULL) return;
105 X509_ALGOR_free(a->keyfunc);
106 X509_ALGOR_free(a->encryption);
107 Free ((char *)a);
108}
109 73
110int i2d_PBKDF2PARAM(PBKDF2PARAM *a, unsigned char **pp) 74ASN1_SEQUENCE(PBKDF2PARAM) = {
111{ 75 ASN1_SIMPLE(PBKDF2PARAM, salt, ASN1_ANY),
112 M_ASN1_I2D_vars(a); 76 ASN1_SIMPLE(PBKDF2PARAM, iter, ASN1_INTEGER),
113 M_ASN1_I2D_len (a->salt, i2d_ASN1_TYPE); 77 ASN1_OPT(PBKDF2PARAM, keylength, ASN1_INTEGER),
114 M_ASN1_I2D_len (a->iter, i2d_ASN1_INTEGER); 78 ASN1_OPT(PBKDF2PARAM, prf, X509_ALGOR)
115 M_ASN1_I2D_len (a->keylength, i2d_ASN1_INTEGER); 79} ASN1_SEQUENCE_END(PBKDF2PARAM)
116 M_ASN1_I2D_len (a->prf, i2d_X509_ALGOR);
117 80
118 M_ASN1_I2D_seq_total (); 81IMPLEMENT_ASN1_FUNCTIONS(PBKDF2PARAM)
119
120 M_ASN1_I2D_put (a->salt, i2d_ASN1_TYPE);
121 M_ASN1_I2D_put (a->iter, i2d_ASN1_INTEGER);
122 M_ASN1_I2D_put (a->keylength, i2d_ASN1_INTEGER);
123 M_ASN1_I2D_put (a->prf, i2d_X509_ALGOR);
124
125 M_ASN1_I2D_finish();
126}
127
128PBKDF2PARAM *PBKDF2PARAM_new(void)
129{
130 PBKDF2PARAM *ret=NULL;
131 ASN1_CTX c;
132 M_ASN1_New_Malloc(ret, PBKDF2PARAM);
133 M_ASN1_New(ret->salt, ASN1_TYPE_new);
134 M_ASN1_New(ret->iter, ASN1_INTEGER_new);
135 ret->keylength = NULL;
136 ret->prf = NULL;
137 return (ret);
138 M_ASN1_New_Error(ASN1_F_PBKDF2PARAM_NEW);
139}
140
141PBKDF2PARAM *d2i_PBKDF2PARAM(PBKDF2PARAM **a, unsigned char **pp,
142 long length)
143{
144 M_ASN1_D2I_vars(a,PBKDF2PARAM *,PBKDF2PARAM_new);
145 M_ASN1_D2I_Init();
146 M_ASN1_D2I_start_sequence();
147 M_ASN1_D2I_get (ret->salt, d2i_ASN1_TYPE);
148 M_ASN1_D2I_get (ret->iter, d2i_ASN1_INTEGER);
149 M_ASN1_D2I_get_opt (ret->keylength, d2i_ASN1_INTEGER, V_ASN1_INTEGER);
150 M_ASN1_D2I_get_opt (ret->prf, d2i_X509_ALGOR, V_ASN1_SEQUENCE);
151 M_ASN1_D2I_Finish(a, PBKDF2PARAM_free, ASN1_F_D2I_PBKDF2PARAM);
152}
153
154void PBKDF2PARAM_free (PBKDF2PARAM *a)
155{
156 if(a==NULL) return;
157 ASN1_TYPE_free(a->salt);
158 ASN1_INTEGER_free(a->iter);
159 ASN1_INTEGER_free(a->keylength);
160 X509_ALGOR_free(a->prf);
161 Free ((char *)a);
162}
163 82
164/* Return an algorithm identifier for a PKCS#5 v2.0 PBE algorithm: 83/* Return an algorithm identifier for a PKCS#5 v2.0 PBE algorithm:
165 * yes I know this is horrible! 84 * yes I know this is horrible!
@@ -175,22 +94,32 @@ X509_ALGOR *PKCS5_pbe2_set(const EVP_CIPHER *cipher, int iter,
175 PBKDF2PARAM *kdf = NULL; 94 PBKDF2PARAM *kdf = NULL;
176 PBE2PARAM *pbe2 = NULL; 95 PBE2PARAM *pbe2 = NULL;
177 ASN1_OCTET_STRING *osalt = NULL; 96 ASN1_OCTET_STRING *osalt = NULL;
97 ASN1_OBJECT *obj;
98
99 alg_nid = EVP_CIPHER_type(cipher);
100 if(alg_nid == NID_undef) {
101 ASN1err(ASN1_F_PKCS5_PBE2_SET,
102 ASN1_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
103 goto err;
104 }
105 obj = OBJ_nid2obj(alg_nid);
178 106
179 if(!(pbe2 = PBE2PARAM_new())) goto merr; 107 if(!(pbe2 = PBE2PARAM_new())) goto merr;
180 108
181 /* Setup the AlgorithmIdentifier for the encryption scheme */ 109 /* Setup the AlgorithmIdentifier for the encryption scheme */
182 scheme = pbe2->encryption; 110 scheme = pbe2->encryption;
183 111
184 alg_nid = EVP_CIPHER_type(cipher); 112 scheme->algorithm = obj;
185
186 scheme->algorithm = OBJ_nid2obj(alg_nid);
187 if(!(scheme->parameter = ASN1_TYPE_new())) goto merr; 113 if(!(scheme->parameter = ASN1_TYPE_new())) goto merr;
188 114
189 /* Create random IV */ 115 /* Create random IV */
190 RAND_bytes(iv, EVP_CIPHER_iv_length(cipher)); 116 if (RAND_pseudo_bytes(iv, EVP_CIPHER_iv_length(cipher)) < 0)
117 goto err;
118
119 EVP_CIPHER_CTX_init(&ctx);
191 120
192 /* Dummy cipherinit to just setup the IV */ 121 /* Dummy cipherinit to just setup the IV */
193 EVP_CipherInit(&ctx, cipher, NULL, iv, 0); 122 EVP_CipherInit_ex(&ctx, cipher, NULL, NULL, iv, 0);
194 if(EVP_CIPHER_param_to_asn1(&ctx, scheme->parameter) < 0) { 123 if(EVP_CIPHER_param_to_asn1(&ctx, scheme->parameter) < 0) {
195 ASN1err(ASN1_F_PKCS5_PBE2_SET, 124 ASN1err(ASN1_F_PKCS5_PBE2_SET,
196 ASN1_R_ERROR_SETTING_CIPHER_PARAMS); 125 ASN1_R_ERROR_SETTING_CIPHER_PARAMS);
@@ -199,13 +128,13 @@ X509_ALGOR *PKCS5_pbe2_set(const EVP_CIPHER *cipher, int iter,
199 EVP_CIPHER_CTX_cleanup(&ctx); 128 EVP_CIPHER_CTX_cleanup(&ctx);
200 129
201 if(!(kdf = PBKDF2PARAM_new())) goto merr; 130 if(!(kdf = PBKDF2PARAM_new())) goto merr;
202 if(!(osalt = ASN1_OCTET_STRING_new())) goto merr; 131 if(!(osalt = M_ASN1_OCTET_STRING_new())) goto merr;
203 132
204 if (!saltlen) saltlen = PKCS5_SALT_LEN; 133 if (!saltlen) saltlen = PKCS5_SALT_LEN;
205 if (!(osalt->data = Malloc (saltlen))) goto merr; 134 if (!(osalt->data = OPENSSL_malloc (saltlen))) goto merr;
206 osalt->length = saltlen; 135 osalt->length = saltlen;
207 if (salt) memcpy (osalt->data, salt, saltlen); 136 if (salt) memcpy (osalt->data, salt, saltlen);
208 else RAND_bytes (osalt->data, saltlen); 137 else if (RAND_pseudo_bytes (osalt->data, saltlen) < 0) goto merr;
209 138
210 if(iter <= 0) iter = PKCS5_DEFAULT_ITER; 139 if(iter <= 0) iter = PKCS5_DEFAULT_ITER;
211 if(!ASN1_INTEGER_set(kdf->iter, iter)) goto merr; 140 if(!ASN1_INTEGER_set(kdf->iter, iter)) goto merr;
@@ -218,7 +147,7 @@ X509_ALGOR *PKCS5_pbe2_set(const EVP_CIPHER *cipher, int iter,
218 /* If its RC2 then we'd better setup the key length */ 147 /* If its RC2 then we'd better setup the key length */
219 148
220 if(alg_nid == NID_rc2_cbc) { 149 if(alg_nid == NID_rc2_cbc) {
221 if(!(kdf->keylength = ASN1_INTEGER_new())) goto merr; 150 if(!(kdf->keylength = M_ASN1_INTEGER_new())) goto merr;
222 if(!ASN1_INTEGER_set (kdf->keylength, 151 if(!ASN1_INTEGER_set (kdf->keylength,
223 EVP_CIPHER_key_length(cipher))) goto merr; 152 EVP_CIPHER_key_length(cipher))) goto merr;
224 } 153 }
@@ -264,7 +193,7 @@ X509_ALGOR *PKCS5_pbe2_set(const EVP_CIPHER *cipher, int iter,
264 err: 193 err:
265 PBE2PARAM_free(pbe2); 194 PBE2PARAM_free(pbe2);
266 /* Note 'scheme' is freed as part of pbe2 */ 195 /* Note 'scheme' is freed as part of pbe2 */
267 ASN1_OCTET_STRING_free(osalt); 196 M_ASN1_OCTET_STRING_free(osalt);
268 PBKDF2PARAM_free(kdf); 197 PBKDF2PARAM_free(kdf);
269 X509_ALGOR_free(kalg); 198 X509_ALGOR_free(kalg);
270 X509_ALGOR_free(ret); 199 X509_ALGOR_free(ret);