diff options
Diffstat (limited to 'lib/nettle/int/tls1-prf.c')
| -rw-r--r-- | lib/nettle/int/tls1-prf.c | 60 |
1 files changed, 27 insertions, 33 deletions
diff --git a/lib/nettle/int/tls1-prf.c b/lib/nettle/int/tls1-prf.c index 19ca5d34dc..241d6505a5 100644 --- a/lib/nettle/int/tls1-prf.c +++ b/lib/nettle/int/tls1-prf.c @@ -38,19 +38,16 @@ #include <nettle/sha1.h> #include <nettle/md5.h> - /* The RFC2246 P_hash() function. The mac_ctx is expected to * be initialized and key set to be the secret key. */ static void -P_hash( void *mac_ctx, - nettle_hash_update_func *update, - nettle_hash_digest_func *digest, - size_t digest_size, - size_t seed_size, const uint8_t *seed, - size_t label_size, const char *label, - size_t dst_length, - uint8_t *dst) +P_hash(void *mac_ctx, + nettle_hash_update_func * update, + nettle_hash_digest_func * digest, + size_t digest_size, + size_t seed_size, const uint8_t * seed, + size_t label_size, const char *label, size_t dst_length, uint8_t * dst) { uint8_t Atmp[MAX_HASH_SIZE]; ssize_t left; @@ -59,21 +56,21 @@ P_hash( void *mac_ctx, /* round up */ left = dst_length; - while(left > 0) { - if (started == 0) { /* A(0) */ - update(mac_ctx, label_size, (const uint8_t *)label); /* hash label */ + while (left > 0) { + if (started == 0) { /* A(0) */ + update(mac_ctx, label_size, (const uint8_t *)label); /* hash label */ update(mac_ctx, seed_size, seed); started = 1; } else { update(mac_ctx, digest_size, Atmp); } - digest(mac_ctx, digest_size, Atmp); /* store A(i) */ + digest(mac_ctx, digest_size, Atmp); /* store A(i) */ - update(mac_ctx, digest_size, Atmp); /* hash A(i) */ - update(mac_ctx, label_size, (const uint8_t *)label); /* hash label */ - update(mac_ctx, seed_size, seed); /* hash seed */ + update(mac_ctx, digest_size, Atmp); /* hash A(i) */ + update(mac_ctx, label_size, (const uint8_t *)label); /* hash label */ + update(mac_ctx, seed_size, seed); /* hash seed */ - if (left < (ssize_t)digest_size) + if (left < (ssize_t) digest_size) digest_size = left; digest(mac_ctx, digest_size, dst); @@ -86,10 +83,9 @@ P_hash( void *mac_ctx, } int -tls10_prf(size_t secret_size, const uint8_t *secret, +tls10_prf(size_t secret_size, const uint8_t * secret, size_t label_size, const char *label, - size_t seed_size, const uint8_t *seed, - size_t length, uint8_t *dst) + size_t seed_size, const uint8_t * seed, size_t length, uint8_t * dst) { int l_s; const uint8_t *s1, *s2; @@ -109,17 +105,16 @@ tls10_prf(size_t secret_size, const uint8_t *secret, hmac_md5_set_key(&md5_ctx, l_s, s1); - P_hash(&md5_ctx, (nettle_hash_update_func*)hmac_md5_update, - (nettle_hash_digest_func*)hmac_md5_digest, - MD5_DIGEST_SIZE, - seed_size, seed, label_size, label, length, o1); + P_hash(&md5_ctx, (nettle_hash_update_func *) hmac_md5_update, + (nettle_hash_digest_func *) hmac_md5_digest, + MD5_DIGEST_SIZE, seed_size, seed, label_size, label, length, o1); hmac_sha1_set_key(&sha1_ctx, l_s, s2); - P_hash(&sha1_ctx, (nettle_hash_update_func*)hmac_sha1_update, - (nettle_hash_digest_func*)hmac_sha1_digest, - SHA1_DIGEST_SIZE, - seed_size, seed, label_size, label, length, dst); + P_hash(&sha1_ctx, (nettle_hash_update_func *) hmac_sha1_update, + (nettle_hash_digest_func *) hmac_sha1_digest, + SHA1_DIGEST_SIZE, + seed_size, seed, label_size, label, length, dst); memxor(dst, o1, length); @@ -145,15 +140,14 @@ tls10_prf(size_t secret_size, const uint8_t *secret, -*/ int tls12_prf(void *mac_ctx, - nettle_hash_update_func *update, - nettle_hash_digest_func *digest, + nettle_hash_update_func * update, + nettle_hash_digest_func * digest, size_t digest_size, size_t label_size, const char *label, - size_t seed_size, const uint8_t *seed, - size_t length, uint8_t *dst) + size_t seed_size, const uint8_t * seed, size_t length, uint8_t * dst) { P_hash(mac_ctx, update, digest, digest_size, - seed_size, seed, label_size, label, length, dst); + seed_size, seed, label_size, label, length, dst); return 1; } |