add initial implementation of basic private key encryption functionality

1 files changed, 104 insertions, 0 deletions

diff --git a/tests/test_pk.cpp b/tests/test_pk.cpp
new file mode 100644
index 0000000..4c6fb6e
--- /dev/null
+++ b/tests/test_pk.cpp
@@ -0,0 +1,104 @@
+#include "olm/pk.h"
+#include "olm/crypto.h"
+#include "olm/olm.h"
+
+#include "unittest.hh"
+
+#include <iostream>
+
+int main() {
+
+
+{ /* Encryption Test Case 1 */
+
+TestCase test_case("Public Key Encryption/Decryption Test Case 1");
+
+std::uint8_t decryption_buffer[::olm_pk_decryption_size()];
+OlmPkDecryption *decryption = olm_pk_decryption(decryption_buffer);
+
+std::uint8_t alice_private[32] = {
+    0x77, 0x07, 0x6D, 0x0A, 0x73, 0x18, 0xA5, 0x7D,
+    0x3C, 0x16, 0xC1, 0x72, 0x51, 0xB2, 0x66, 0x45,
+    0xDF, 0x4C, 0x2F, 0x87, 0xEB, 0xC0, 0x99, 0x2A,
+    0xB1, 0x77, 0xFB, 0xA5, 0x1D, 0xB9, 0x2C, 0x2A
+};
+
+/*
+std::uint8_t alice_public[32] = {
+    0x85, 0x20, 0xF0, 0x09, 0x89, 0x30, 0xA7, 0x54,
+    0x74, 0x8B, 0x7D, 0xDC, 0xB4, 0x3E, 0xF7, 0x5A,
+    0x0D, 0xBF, 0x3A, 0x0D, 0x26, 0x38, 0x1A, 0xF4,
+    0xEB, 0xA4, 0xA9, 0x8E, 0xAA, 0x9B, 0x4E, 0x6A
+};
+*/
+
+std::uint8_t bob_private[32] = {
+    0x5D, 0xAB, 0x08, 0x7E, 0x62, 0x4A, 0x8A, 0x4B,
+    0x79, 0xE1, 0x7F, 0x8B, 0x83, 0x80, 0x0E, 0xE6,
+    0x6F, 0x3B, 0xB1, 0x29, 0x26, 0x18, 0xB6, 0xFD,
+    0x1C, 0x2F, 0x8B, 0x27, 0xFF, 0x88, 0xE0, 0xEB
+};
+
+/*
+std::uint8_t bob_public[32] = {
+    0xDE, 0x9E, 0xDB, 0x7D, 0x7B, 0x7D, 0xC1, 0xB4,
+    0xD3, 0x5B, 0x61, 0xC2, 0xEC, 0xE4, 0x35, 0x37,
+    0x3F, 0x83, 0x43, 0xC8, 0x5B, 0x78, 0x67, 0x4D,
+    0xAD, 0xFC, 0x7E, 0x14, 0x6F, 0x88, 0x2B, 0x4F
+};
+*/
+
+std::uint8_t pubkey[::olm_pk_key_length()];
+
+olm_pk_generate_key(
+    decryption,
+    pubkey, sizeof(pubkey),
+    alice_private, sizeof(alice_private)
+);
+
+//FIXME:assert_equals(alice_public, pubkey, 32);
+
+std::uint8_t encryption_buffer[::olm_pk_encryption_size()];
+OlmPkEncryption *encryption = olm_pk_encryption(encryption_buffer);
+
+olm_pk_encryption_set_recipient_key(encryption, pubkey, sizeof(pubkey));
+
+const size_t plaintext_length = 14;
+const std::uint8_t *plaintext = (std::uint8_t *) "This is a test";
+
+size_t ciphertext_length = olm_pk_ciphertext_length(encryption, plaintext_length);
+std::uint8_t *ciphertext_buffer = (std::uint8_t *) malloc(ciphertext_length);
+
+std::uint8_t output_buffer[::olm_pk_mac_length(encryption)];
+std::uint8_t ephemeral_key[::olm_pk_key_length()];
+
+olm_pk_encrypt(
+    encryption,
+    plaintext, plaintext_length,
+    ciphertext_buffer, ciphertext_length,
+    output_buffer, sizeof(output_buffer),
+    ephemeral_key, sizeof(ephemeral_key),
+    bob_private, sizeof(bob_private)
+);
+
+//FIXME:assert_equals(bob_public, ephemeral_key, 32);
+
+size_t max_plaintext_length = olm_pk_max_plaintext_length(decryption, ciphertext_length);
+std::uint8_t *plaintext_buffer = (std::uint8_t *) malloc(max_plaintext_length);
+
+olm_pk_decrypt(
+    decryption,
+    ephemeral_key, sizeof(ephemeral_key),
+    output_buffer, sizeof(output_buffer),
+    ciphertext_buffer, ciphertext_length,
+    plaintext_buffer, max_plaintext_length
+);
+
+assert_equals(plaintext, plaintext_buffer, plaintext_length);
+
+free(ciphertext_buffer);
+free(plaintext_buffer);
+
+}
+
+}