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128 bytes key expansion

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orignal 2015-02-21 22:07:55 -05:00
parent 05e49bbeab
commit b187babd20
1 changed files with 7 additions and 7 deletions
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14
Reseed.cpp
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@ -526,13 +526,13 @@ namespace data
static uint8_t clientHello[] =
{
0x16, // handshake
0x03, 0x03, // version (TSL 1.2)
0x03, 0x03, // version (TLS 1.2)
0x00, 0x2F, // length of handshake
// handshake
0x01, // handshake type (client hello)
0x00, 0x00, 0x2B, // length of handshake payload
// client hello
0x03, 0x03, // highest version supported (TSL 1.2)
0x03, 0x03, // highest version supported (TLS 1.2)
0x45, 0xFA, 0x01, 0x19, 0x74, 0x55, 0x18, 0x36,
0x42, 0x05, 0xC1, 0xDD, 0x4A, 0x21, 0x80, 0x80,
0xEC, 0x37, 0x11, 0x93, 0x16, 0xF4, 0x66, 0x00,
@ -547,8 +547,8 @@ namespace data
static uint8_t changeCipherSpecs[] =
{
0x14, // change chiper specs
0x03, 0x03, // version (TSL 1.2)
0x14, // change cipher specs
0x03, 0x03, // version (TLS 1.2)
0x00, 0x01, // length
0x01 // type
};
@ -556,7 +556,7 @@ namespace data
static uint8_t finished[] =
{
0x16, // handshake
0x03, 0x03, // version (TSL 1.2)
0x03, 0x03, // version (TLS 1.2)
0x00, 0x50, // length of handshake (80 bytes)
// handshake (encrypted)
// unencrypted context
@ -637,10 +637,10 @@ namespace data
memcpy (random + 32, serverRandom, 32);
PRF (secret, "master secret", random, 64, 48, masterSecret);
// expand master secret
uint8_t keys[256]; // clientMACKey(32), serverMACKey(32), clientKey(32), serverKey(32)
uint8_t keys[128]; // clientMACKey(32), serverMACKey(32), clientKey(32), serverKey(32)
memcpy (random, serverRandom, 32);
memcpy (random + 32, clientHello + 11, 32);
PRF (masterSecret, "key expansion", random, 64, 256, keys);
PRF (masterSecret, "key expansion", random, 64, 128, keys);
memcpy (m_MacKey, keys, 32);
m_Encryption.SetKey (keys + 64);
m_Decryption.SetKey (keys + 96);