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Extracting the handshake transcript hash and handshake state #6

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Extracting the handshake transcript hash and handshake state #6

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3 changes: 3 additions & 0 deletions include/openssl/ssl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -170,6 +170,9 @@ extern "C" {
// SSL implementation.


OPENSSL_EXPORT int PUFFIN_extract_transcript(SSL* ssl, uint8_t* out, size_t* out_len);
OPENSSL_EXPORT const char* PUFFIN_get_server_handshake_state(SSL *ssl);

// SSL contexts.
//
// |SSL_CTX| objects manage shared state and configuration between multiple TLS
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22 changes: 22 additions & 0 deletions ssl/ssl_lib.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -499,6 +499,28 @@ BSSL_NAMESPACE_END

using namespace bssl;

int PUFFIN_extract_transcript(SSL *ssl, uint8_t *out, size_t *out_len) {
SSL_HANDSHAKE *hs = ssl->s3->hs.get();

if (hs == NULL) {
return 0;
} else {
hs->transcript.GetHash(out, out_len);
}

return 1;
}


const char *PUFFIN_get_server_handshake_state(SSL *ssl) {
SSL_HANDSHAKE *hs = ssl->s3->hs.get();
if (hs == NULL) {
return "NULL HANDSHAKE";
}
return tls13_server_handshake_state(hs);
}


int SSL_library_init(void) {
CRYPTO_library_init();
return 1;
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