OpenCoverage

e_rc4_hmac_md5.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/evp/e_rc4_hmac_md5.c
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4-
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6-
7-
8-
9-
10typedef struct {-
11 RC4_KEY ks;-
12 MD5_CTX head, tail, md;-
13 size_t payload_length;-
14} EVP_RC4_HMAC_MD5;-
15-
16-
17-
18void rc4_md5_enc (RC4_KEY *key, const void *in0, void *out,-
19 MD5_CTX *ctx, const void *inp, size_t blocks);-
20-
21-
22-
23static int-
24rc4_hmac_md5_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *inkey,-
25 const unsigned char *iv, int enc)-
26{-
27 EVP_RC4_HMAC_MD5 *key = ((EVP_RC4_HMAC_MD5 *)(ctx)->cipher_data);-
28-
29 RC4_set_key(&key->ks, EVP_CIPHER_CTX_key_length(ctx), inkey);-
30-
31 MD5_Init(&key->head);-
32 key->tail = key->head;-
33 key->md = key->head;-
34-
35 key->payload_length = ((size_t)-1);-
36-
37 return
never executed: return 1;
 1;
never executed: return 1;
0
38}-
39static int-
40rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,-
41 const unsigned char *in, size_t len)-
42{-
43 EVP_RC4_HMAC_MD5 *key = ((EVP_RC4_HMAC_MD5 *)(ctx)->cipher_data);-
44-
45-
46-
47-
48-
49-
50 size_t plen = key->payload_length;-
51-
52 if (plen != ((size_t)-1)
plen != ((size_t)-1)Description
TRUEnever evaluated
FALSEnever evaluated
 && len != (plen + 16)
len != (plen + 16)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
53 return
never executed: return 0;
 0;
never executed: return 0;
0
54-
55 if (ctx->encrypt
ctx->encryptDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
56 if (plen == ((size_t)-1)
plen == ((size_t)-1)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
57 plen = len;
never executed: plen = len;
0
58 MD5_Update(&key->md, in + 0, plen - 0);-
59-
60 if (plen!=len
plen!=lenDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
61 if (in != out
in != outDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
62 memcpy(out + 0, in + 0,
never executed: memcpy(out + 0, in + 0, plen - 0);
0
63 plen - 0);
never executed: memcpy(out + 0, in + 0, plen - 0);
0
64-
65-
66 MD5_Final(out + plen, &key->md);-
67 key->md = key->tail;-
68 MD5_Update(&key->md, out + plen, 16);-
69 MD5_Final(out + plen, &key->md);-
70-
71-
72 RC4(&key->ks, len - 0, out + 0,-
73 out + 0);-
74 }
never executed: end of block
 else {		0
75 RC4(&key->ks, len - 0, in + 0,-
76 out + 0);-
77 }
never executed: end of block
0
78 } else {-
79 unsigned char mac[16];-
80 RC4(&key->ks, len - 0, in + 0, out + 0);-
81 if (plen!=((size_t)-1)
plen!=((size_t)-1)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
82 MD5_Update(&key->md, out + 0, plen - 0);-
83-
84-
85 MD5_Final(mac, &key->md);-
86 key->md = key->tail;-
87 MD5_Update(&key->md, mac, 16);-
88 MD5_Final(mac, &key->md);-
89-
90 if (memcmp(out + plen, mac, 16)
memcmp(out + plen, mac, 16)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
91 return
never executed: return 0;
 0;
never executed: return 0;
0
92 }
never executed: end of block
 else {		0
93 MD5_Update(&key->md, out + 0, len - 0);-
94 }
never executed: end of block
0
95 }-
96-
97 key->payload_length = ((size_t)-1);-
98-
99 return
never executed: return 1;
 1;
never executed: return 1;
0
100}-
101-
102static int-
103rc4_hmac_md5_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)-
104{-
105 EVP_RC4_HMAC_MD5 *key = ((EVP_RC4_HMAC_MD5 *)(ctx)->cipher_data);-
106-
107 switch (type) {-
108 case
never executed: case 0x17:
 0x17:
never executed: case 0x17:
0
109 {-
110 unsigned int i;-
111 unsigned char hmac_key[64];-
112-
113 memset (hmac_key, 0, sizeof(hmac_key));-
114-
115 if (arg > (int)sizeof(hmac_key)
arg > (int)sizeof(hmac_key)Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
116 MD5_Init(&key->head);-
117 MD5_Update(&key->head, ptr, arg);-
118 MD5_Final(hmac_key, &key->head);-
119 }
never executed: end of block
 else {		0
120 memcpy(hmac_key, ptr, arg);-
121 }
never executed: end of block
0
122-
123 for (i = 0; i < sizeof(hmac_key)
i < sizeof(hmac_key)Description
TRUEnever evaluated
FALSEnever evaluated
; i++)		0
124 hmac_key[i] ^= 0x36;
never executed: hmac_key[i] ^= 0x36;
0
125 MD5_Init(&key->head);-
126 MD5_Update(&key->head, hmac_key, sizeof(hmac_key));-
127-
128 for (i = 0; i < sizeof(hmac_key)
i < sizeof(hmac_key)Description
TRUEnever evaluated
FALSEnever evaluated
; i++)		0
129 hmac_key[i] ^= 0x36 ^ 0x5c;
never executed: hmac_key[i] ^= 0x36 ^ 0x5c;
0
130 MD5_Init(&key->tail);-
131 MD5_Update(&key->tail, hmac_key, sizeof(hmac_key));-
132-
133 return
never executed: return 1;
 1;
never executed: return 1;
0
134 }-
135 case
never executed: case 0x16:
 0x16:
never executed: case 0x16:
0
136 {-
137 unsigned char *p = ptr;-
138 unsigned int len = p[arg - 2] << 8 | p[arg - 1];-
139-
140 if (!ctx->encrypt
!ctx->encryptDescription
TRUEnever evaluated
FALSEnever evaluated
) {		0
141 if (len < 16
len < 16Description
TRUEnever evaluated
FALSEnever evaluated
)		0
142 return
never executed: return -1;
 -1;
never executed: return -1;
0
143 len -= 16;-
144 p[arg - 2] = len >> 8;-
145 p[arg - 1] = len;-
146 }
never executed: end of block
0
147 key->payload_length = len;-
148 key->md = key->head;-
149 MD5_Update(&key->md, p, arg);-
150-
151 return
never executed: return 16;
 16;
never executed: return 16;
0
152 }-
153 default
never executed: default:
:
never executed: default:
0
154 return
never executed: return -1;
 -1;
never executed: return -1;
0
155 }-
156}-
157-
158static EVP_CIPHER r4_hmac_md5_cipher = {-
159-
160 915,-
161-
162-
163-
164 1, 16, 0,-
165 0x0|0x8|0x200000,-
166 rc4_hmac_md5_init_key,-
167 rc4_hmac_md5_cipher,-
168 -
169((void *)0)-
170 ,-
171 sizeof(EVP_RC4_HMAC_MD5),-
172 -
173((void *)0)-
174 ,-
175 -
176((void *)0)-
177 ,-
178 rc4_hmac_md5_ctrl,-
179 -
180((void *)0)-
181-
182};-
183-
184const EVP_CIPHER *-
185EVP_rc4_hmac_md5(void)-
186{-
187 return
executed 625 times by 33 tests: return (&r4_hmac_md5_cipher);
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
 (&r4_hmac_md5_cipher);
executed 625 times by 33 tests: return (&r4_hmac_md5_cipher);
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
625
188}-
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