comparison test for debugging

tests/nip04_comparison_test.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "../nostr_core/nip004.h"
+#include "../nostr_core/nostr_common.h"
+#include "../nostr_core/utils.h"
+
+int main(void) {
+    // Test vector 1 from the existing test
+    const char* sk1_hex = "91ba716fa9e7ea2fcbad360cf4f8e0d312f73984da63d90f524ad61a6a1e7dbe";
+    const char* pk2_hex = "dcb33a629560280a0ee3b6b99b68c044fe8914ad8a984001ebf6099a9b474dc3";
+    const char* plaintext = "nanana";
+    
+    // Convert hex keys to bytes using the system function
+    unsigned char sk1[32], pk2[32];
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
+    
+    // Allocate output buffer
+    char* encrypted = malloc(NOSTR_NIP04_MAX_ENCRYPTED_SIZE);
+    if (!encrypted) {
+        printf("Memory allocation failed\n");
+        return 1;
+    }
+    
+    // Call the encryption function
+    int result = nostr_nip04_encrypt(sk1, pk2, plaintext, encrypted, NOSTR_NIP04_MAX_ENCRYPTED_SIZE);
+    
+    if (result == NOSTR_SUCCESS) {
+        printf("%s\n", encrypted);
+    } else {
+        printf("Error: %s\n", nostr_strerror(result));
+    }
+    
+    free(encrypted);
+    return 0;
+}

tests/nip04_debug_test.c

@@ -0,0 +1,204 @@
+/*
+ * NIP-04 Encryption DEBUG Test
+ * This test shows intermediate values to compare with JavaScript implementation
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "../nostr_core/nip004.h"
+#include "../nostr_core/nostr_common.h"
+#include "../nostr_core/crypto/nostr_secp256k1.h"
+#include "../nostr_core/utils.h"
+
+void print_hex_debug(const char* label, const unsigned char* data, size_t len) {
+    printf("%s (%zu bytes): ", label, len);
+    for (size_t i = 0; i < len; i++) {
+        printf("%02x", data[i]);
+    }
+    printf("\n");
+}
+
+void hex_to_bytes(const char* hex_str, unsigned char* bytes) {
+    size_t len = strlen(hex_str);
+    for (size_t i = 0; i < len; i += 2) {
+        sscanf(hex_str + i, "%2hhx", &bytes[i / 2]);
+    }
+}
+
+int test_ecdh_debug(void) {
+    printf("\n=== ECDH DEBUG TEST ===\n");
+    
+    // Test vector from JavaScript debug output
+    const char* sk1_hex = "91ba716fa9e7ea2fcbad360cf4f8e0d312f73984da63d90f524ad61a6a1e7dbe";
+    const char* pk2_hex = "dcb33a629560280a0ee3b6b99b68c044fe8914ad8a984001ebf6099a9b474dc3";
+    
+    // Expected values from JavaScript:
+    // Shared Secret (33 bytes): 037ce22696eb0e303ddaa491bdf2a56b79d249f2d861b8e012a933e01dc4beba81
+    // Normalized Key (32 bytes): 7ce22696eb0e303ddaa491bdf2a56b79d249f2d861b8e012a933e01dc4beba81
+    
+    unsigned char sk1[32], pk2[32];
+    hex_to_bytes(sk1_hex, sk1);
+    hex_to_bytes(pk2_hex, pk2);
+    
+    printf("Private Key: %s\n", sk1_hex);
+    printf("Public Key:  %s\n", pk2_hex);
+    
+    print_hex_debug("SK1", sk1, 32);
+    print_hex_debug("PK2", pk2, 32);
+    
+    // Test ECDH shared secret computation
+    unsigned char shared_secret[32];
+    printf("\nCalling ecdh_shared_secret...\n");
+    int result = ecdh_shared_secret(sk1, pk2, shared_secret);
+    printf("ecdh_shared_secret returned: %d\n", result);
+    
+    if (result == 0) {
+        print_hex_debug("C Shared Secret", shared_secret, 32);
+        printf("Expected:        7ce22696eb0e303ddaa491bdf2a56b79d249f2d861b8e012a933e01dc4beba81\n");
+        
+        // Check if it matches expected
+        const char* expected_hex = "7ce22696eb0e303ddaa491bdf2a56b79d249f2d861b8e012a933e01dc4beba81";
+        unsigned char expected[32];
+        hex_to_bytes(expected_hex, expected);
+        
+        if (memcmp(shared_secret, expected, 32) == 0) {
+            printf("✅ ECDH matches expected value!\n");
+            return 1;
+        } else {
+            printf("❌ ECDH does NOT match expected value\n");
+            print_hex_debug("Expected", expected, 32);
+            return 0;
+        }
+    } else {
+        printf("❌ ECDH computation failed with error code: %d\n", result);
+        return 0;
+    }
+}
+
+int test_encryption_step_by_step(void) {
+    printf("\n=== STEP-BY-STEP ENCRYPTION DEBUG ===\n");
+    
+    // Test vector 1 data
+    const char* sk1_hex = "91ba716fa9e7ea2fcbad360cf4f8e0d312f73984da63d90f524ad61a6a1e7dbe";
+    const char* pk2_hex = "dcb33a629560280a0ee3b6b99b68c044fe8914ad8a984001ebf6099a9b474dc3";
+    const char* plaintext = "nanana";
+    
+    // Known IV from JavaScript test (to get deterministic results)
+    const char* fixed_iv_hex = "115e5b52371ce0e5f62a6ff33e9e2775";
+    
+    printf("Private Key: %s\n", sk1_hex);
+    printf("Public Key:  %s\n", pk2_hex);
+    printf("Plaintext:   \"%s\"\n", plaintext);
+    printf("Fixed IV:    %s\n", fixed_iv_hex);
+    
+    unsigned char sk1[32], pk2[32], fixed_iv[16];
+    hex_to_bytes(sk1_hex, sk1);
+    hex_to_bytes(pk2_hex, pk2);
+    hex_to_bytes(fixed_iv_hex, fixed_iv);
+    
+    // Step 1: ECDH
+    printf("\n--- Step 1: ECDH Shared Secret ---\n");
+    unsigned char shared_secret[32];
+    if (ecdh_shared_secret(sk1, pk2, shared_secret) != 0) {
+        printf("❌ ECDH failed\n");
+        return 0;
+    }
+    print_hex_debug("Shared Secret", shared_secret, 32);
+    printf("Expected:     7ce22696eb0e303ddaa491bdf2a56b79d249f2d861b8e012a933e01dc4beba81\n");
+    
+    // Step 2: Convert plaintext to bytes
+    printf("\n--- Step 2: Plaintext to UTF-8 bytes ---\n");
+    size_t plaintext_len = strlen(plaintext);
+    printf("UTF-8 Plaintext (%zu bytes): ", plaintext_len);
+    for (size_t i = 0; i < plaintext_len; i++) {
+        printf("%02x", (unsigned char)plaintext[i]);
+    }
+    printf("\n");
+    printf("Expected:                     6e616e616e61\n");
+    
+    // Step 3: PKCS#7 padding
+    printf("\n--- Step 3: PKCS#7 Padding ---\n");
+    size_t padded_len = ((plaintext_len / 16) + 1) * 16;
+    unsigned char* padded_data = malloc(padded_len);
+    if (!padded_data) {
+        printf("❌ Memory allocation failed\n");
+        return 0;
+    }
+    
+    memcpy(padded_data, plaintext, plaintext_len);
+    
+    // Manual PKCS#7 padding for debugging
+    size_t padding_needed = 16 - (plaintext_len % 16);
+    for (size_t i = 0; i < padding_needed; i++) {
+        padded_data[plaintext_len + i] = (unsigned char)padding_needed;
+    }
+    size_t actual_padded_len = plaintext_len + padding_needed;
+    
+    print_hex_debug("Padded Data", padded_data, actual_padded_len);
+    printf("Padding bytes added: %zu (value: 0x%02x)\n", padding_needed, (unsigned char)padding_needed);
+    
+    // Step 4: Try calling the full encryption function
+    printf("\n--- Step 4: Full Encryption Function ---\n");
+    char* encrypted = malloc(NOSTR_NIP04_MAX_ENCRYPTED_SIZE);
+    if (!encrypted) {
+        printf("❌ Memory allocation failed\n");
+        free(padded_data);
+        return 0;
+    }
+    
+    printf("Calling nostr_nip04_encrypt...\n");
+    int result = nostr_nip04_encrypt(sk1, pk2, plaintext, encrypted, NOSTR_NIP04_MAX_ENCRYPTED_SIZE);
+    printf("nostr_nip04_encrypt returned: %d (%s)\n", result, nostr_strerror(result));
+    
+    if (result == NOSTR_SUCCESS) {
+        printf("✅ Encryption succeeded!\n");
+        printf("Result: %s\n", encrypted);
+        printf("Expected: zJxfaJ32rN5Dg1ODjOlEew==?iv=EV5bUjcc4OX2Km/zPp4ndQ==\n");
+    } else {
+        printf("❌ Encryption failed with error: %s\n", nostr_strerror(result));
+    }
+    
+    free(padded_data);
+    free(encrypted);
+    return result == NOSTR_SUCCESS ? 1 : 0;
+}
+
+int main(void) {
+    printf("=== NIP-04 DEBUG TEST ===\n");
+    printf("This test shows intermediate values for comparison with JavaScript implementation\n\n");
+    
+    // Initialize secp256k1 context
+    printf("Initializing secp256k1 context...\n");
+    if (!nostr_secp256k1_context_create()) {
+        printf("❌ Failed to initialize secp256k1 context!\n");
+        return 1;
+    }
+    printf("✅ secp256k1 context initialized successfully\n\n");
+    
+    int all_passed = 1;
+    
+    // Test 1: ECDH computation
+    if (!test_ecdh_debug()) {
+        all_passed = 0;
+        printf("❌ ECDH test failed - this is likely the root cause!\n");
+    }
+    
+    // Test 2: Step by step encryption
+    if (!test_encryption_step_by_step()) {
+        all_passed = 0;
+    }
+    
+    // Summary
+    printf("\n=== SUMMARY ===\n");
+    if (all_passed) {
+        printf("✅ All debug tests passed!\n");
+    } else {
+        printf("❌ Some debug tests failed - compare values with JavaScript output\n");
+    }
+    
+    // Clean up secp256k1 context
+    nostr_secp256k1_context_destroy();
+    
+    return all_passed ? 0 : 1;
+}

tests/nip04_test.c

@@ -8,22 +8,7 @@
 #include <string.h>
 #include "../nostr_core/nip004.h"
 #include "../nostr_core/nostr_common.h"
-
-
-void print_hex(const char* label, const unsigned char* data, size_t len) {
-    printf("%s: ", label);
-    for (size_t i = 0; i < len; i++) {
-        printf("%02x", data[i]);
-    }
-    printf("\n");
-}
-
-void hex_to_bytes(const char* hex_str, unsigned char* bytes) {
-    size_t len = strlen(hex_str);
-    for (size_t i = 0; i < len; i += 2) {
-        sscanf(hex_str + i, "%2hhx", &bytes[i / 2]);
-    }
-}
+#include "../nostr_core/utils.h"
 
 // Simple replacement for strndup which isn't available in C99
 char* safe_strndup(const char* s, size_t n) {
@@ -50,10 +35,10 @@ int test_vector_1(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -157,10 +142,10 @@ int test_vector_2(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -255,10 +240,10 @@ int test_vector_3_bidirectional(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -364,10 +349,10 @@ int test_vector_4_random_keys(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -452,10 +437,10 @@ int test_vector_5_long_message(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -540,10 +525,10 @@ int test_vector_6_short_message(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -644,10 +629,10 @@ int test_vector_7_10kb_payload(void) {
     
     // Convert hex keys to bytes
     unsigned char sk1[32], sk2[32], pk1[32], pk2[32];
-    hex_to_bytes(sk1_hex, sk1);
-    hex_to_bytes(sk2_hex, sk2);
-    hex_to_bytes(pk1_hex, pk1);
-    hex_to_bytes(pk2_hex, pk2);
+    nostr_hex_to_bytes(sk1_hex, sk1, 32);
+    nostr_hex_to_bytes(sk2_hex, sk2, 32);
+    nostr_hex_to_bytes(pk1_hex, pk1, 32);
+    nostr_hex_to_bytes(pk2_hex, pk2, 32);
     
     printf("Input Test Vector:\n");
     printf("SK1 (Alice): %s\n", sk1_hex);
@@ -757,11 +742,11 @@ int test_vector_7_10kb_payload(void) {
 int main(void) {
     printf("=== NIP-04 Encryption Test with Reference Test Vectors ===\n\n");
     
-    // Initialize the library
-    // if (nostr_init() != NOSTR_SUCCESS) {
-    //     printf("ERROR: Failed to initialize NOSTR library\n");
-    //     return 1;
-    // }
+    // Initialize the library - REQUIRED for secp256k1 operations
+    if (nostr_crypto_init() != 0) {
+        printf("ERROR: Failed to initialize NOSTR crypto library\n");
+        return 1;
+    }
     
     int all_passed = 1;
     
@@ -813,6 +798,7 @@ int main(void) {
         printf("❌ SOME TESTS FAILED. Please review the output above.\n");
     }
     
-    // nostr_cleanup();
+    // Cleanup crypto resources
+    nostr_crypto_cleanup();
     return all_passed ? 0 : 1;
 }