X-Git-Url: https://bearssl.org/gitweb//home/git/?p=BearSSL;a=blobdiff_plain;f=src%2Fssl%2Fprf.c;h=f04a5fb7c41060d22bb58289d05dc79af97dc54f;hp=43a74c36f015a81308f5197c9ffdfa7c4d36a556;hb=ea95d8264c6aefe742a9c3f4f9d834b188566a29;hpb=3210f38e0491b39aec1ef419cb4114e9483089fb;ds=sidebyside

diff --git a/src/ssl/prf.c b/src/ssl/prf.c
index 43a74c3..f04a5fb 100644
--- a/src/ssl/prf.c
+++ b/src/ssl/prf.c
@@ -28,14 +28,14 @@
 void
 br_tls_phash(void *dst, size_t len,
 	const br_hash_class *dig,
-	const void *secret, size_t secret_len,
-	const char *label, const void *seed, size_t seed_len)
+	const void *secret, size_t secret_len, const char *label,
+	size_t seed_num, const br_tls_prf_seed_chunk *seed)
 {
 	unsigned char *buf;
 	unsigned char tmp[64], a[64];
 	br_hmac_key_context kc;
 	br_hmac_context hc;
-	size_t label_len, hlen;
+	size_t label_len, hlen, u;
 
 	if (len == 0) {
 		return;
@@ -46,15 +46,17 @@ br_tls_phash(void *dst, size_t len,
 	br_hmac_key_init(&kc, dig, secret, secret_len);
 	br_hmac_init(&hc, &kc, 0);
 	br_hmac_update(&hc, label, label_len);
-	br_hmac_update(&hc, seed, seed_len);
+	for (u = 0; u < seed_num; u ++) {
+		br_hmac_update(&hc, seed[u].data, seed[u].len);
+	}
 	br_hmac_out(&hc, a);
 	for (;;) {
-		size_t u;
-
 		br_hmac_init(&hc, &kc, 0);
 		br_hmac_update(&hc, a, hlen);
 		br_hmac_update(&hc, label, label_len);
-		br_hmac_update(&hc, seed, seed_len);
+		for (u = 0; u < seed_num; u ++) {
+			br_hmac_update(&hc, seed[u].data, seed[u].len);
+		}
 		br_hmac_out(&hc, tmp);
 		for (u = 0; u < hlen && u < len; u ++) {
 			buf[u] ^= tmp[u];