Crypto build cleanup: remove CONFIG_NO_T_PRF

[mech_eap.orig] / src / crypto / sha1.c

diff --git a/src/crypto/sha1.c b/src/crypto/sha1.c
index e05210f..27caf15 100644 (file)
--- a/src/crypto/sha1.c
+++ b/src/crypto/sha1.c
@@ -155,62 +155,6 @@ void sha1_prf(const u8 *key, size_t key_len, const char *label,
 }
 
 
-#ifndef CONFIG_NO_T_PRF
-/**
- * sha1_t_prf - EAP-FAST Pseudo-Random Function (T-PRF)
- * @key: Key for PRF
- * @key_len: Length of the key in bytes
- * @label: A unique label for each purpose of the PRF
- * @seed: Seed value to bind into the key
- * @seed_len: Length of the seed
- * @buf: Buffer for the generated pseudo-random key
- * @buf_len: Number of bytes of key to generate
- *
- * This function is used to derive new, cryptographically separate keys from a
- * given key for EAP-FAST. T-PRF is defined in RFC 4851, Section 5.5.
- */
-void sha1_t_prf(const u8 *key, size_t key_len, const char *label,
-               const u8 *seed, size_t seed_len, u8 *buf, size_t buf_len)
-{
-       unsigned char counter = 0;
-       size_t pos, plen;
-       u8 hash[SHA1_MAC_LEN];
-       size_t label_len = os_strlen(label);
-       u8 output_len[2];
-       const unsigned char *addr[5];
-       size_t len[5];
-
-       addr[0] = hash;
-       len[0] = 0;
-       addr[1] = (unsigned char *) label;
-       len[1] = label_len + 1;
-       addr[2] = seed;
-       len[2] = seed_len;
-       addr[3] = output_len;
-       len[3] = 2;
-       addr[4] = &counter;
-       len[4] = 1;
-
-       output_len[0] = (buf_len >> 8) & 0xff;
-       output_len[1] = buf_len & 0xff;
-       pos = 0;
-       while (pos < buf_len) {
-               counter++;
-               plen = buf_len - pos;
-               hmac_sha1_vector(key, key_len, 5, addr, len, hash);
-               if (plen >= SHA1_MAC_LEN) {
-                       os_memcpy(&buf[pos], hash, SHA1_MAC_LEN);
-                       pos += SHA1_MAC_LEN;
-               } else {
-                       os_memcpy(&buf[pos], hash, plen);
-                       break;
-               }
-               len[0] = SHA1_MAC_LEN;
-       }
-}
-#endif /* CONFIG_NO_T_PRF */
-
-
 #ifndef CONFIG_NO_TLS_PRF
 /**
  * tls_prf - Pseudo-Random Function for TLS (TLS-PRF, RFC 2246)