feat!: #4 Close #4. Add public nip04 support to api

1 files changed, 69 insertions, 3 deletions

diff --git a/include/noscrypt.h b/include/noscrypt.h
index cdc74fe..f408dfc 100644
--- a/include/noscrypt.h
+++ b/include/noscrypt.h
@@ -77,7 +77,8 @@ extern "C" {
 #define NC_HMAC_KEY_SIZE				0x20
 #define NC_ENCRYPTION_MAC_SIZE			0x20
 #define NC_MESSAGE_KEY_SIZE NIP44_MESSAGE_KEY_SIZE
-#define NC_NIP04_AES_IV_SIZE			0x10	/* AES IV size is 16 bytes (block size) */
+#define NC_NIP04_AES_IV_SIZE			0x10	/* AES IV size is 16 bytes (aka cipher block size) */
+#define NC_NIP04_AES_KEY_SIZE			0x20	/* AES 256 key size */
 
 /*
 * From spec
@@ -112,6 +113,20 @@ extern "C" {
 #define E_VERSION_NOT_SUPPORTED		-6
 
 
+/*
+* ENCRYPTION ALTERATION PROPERTEIS
+* 
+* Codes for assigning values to an NCEncryptionArgs 
+* structure.
+*/
+
+#define NC_ENC_SET_VERSION			0x01
+#define NC_ENC_SET_NIP44_NONCE		0x02
+#define NC_ENC_SET_NIP44_MAC_KEY	0x03
+#define NC_ENC_SET_NIP04_KEY		0x04
+#define NC_ENC_SET_NIP04_IV			0x05
+
+
 /* A compressed resul/return value, negative values 
 are failure, 0 is success and positive values are 
 defined by the operation. 
@@ -149,11 +164,11 @@ data buffers and required nonce used for the stream cipher.
 typedef struct nc_encryption_struct {
 
 	/* The nonce used for the stream cipher. */
-	const uint8_t* nonce32;
+	const uint8_t* nonceData;
 
 	/* Writes the hmac key to the buffer during encryption events.
 	Set to NULL on decryption */
-	uint8_t* hmacKeyOut32;
+	uint8_t* keyData;
 
 	/* The input data buffer to encrypt/decrypt */
 	const uint8_t* inputData;
@@ -578,6 +593,57 @@ NC_EXPORT NCResult NCComputeMac(
 	uint8_t hmacOut[NC_ENCRYPTION_MAC_SIZE]
 );
 
+
+/*
+* A special function that configures custom properties on
+* the NCEncryptionArgs structure for a given operation.
+* @param args A pointer to the encryption arguments structure
+* @param property The ID property to set
+* @param value The value to set the property to as a 32-bit integer
+* @return NC_SUCCESS if the operation was successful, otherwise an error code. Use NCParseErrorCode to
+* the error code and positional argument that caused the error.
+*/
+NC_EXPORT NCResult NCSetEncryptionProperty(
+	NCEncryptionArgs* args, 
+	uint32_t property,
+	uint32_t value
+);
+
+/*
+* A special function that configures custom properties on
+* the NCEncryptionArgs structure for a given operation.
+* 
+* @param args A pointer to the encryption arguments structure
+* @param property The ID property to set
+* @param value The value to set the property to as a byte buffer
+* @param valueLen The length of the value buffer
+* @return NC_SUCCESS if the operation was successful, otherwise an error code. Use NCParseErrorCode to
+* the error code and positional argument that caused the error.
+*/
+NC_EXPORT NCResult NCSetEncryptionPropertyEx(
+	NCEncryptionArgs* args,
+	uint32_t property,
+	uint8_t* value,
+	uint32_t valueLen
+);
+
+/*
+* Sets the encryption data buffers for the encryption/decryption 
+* operation. 
+* @param args A pointer to the encryption arguments structure
+* @param input The input data buffer
+* @param output The output data buffer
+* @param dataSize The size of the data buffers
+* @return NC_SUCCESS if the operation was successful, otherwise an error code. Use NCParseErrorCode to
+* the error code and positional argument that caused the error.
+*/
+NC_EXPORT NCResult NCSetEncryptionData(
+	NCEncryptionArgs* args,
+	const uint8_t* input,
+	uint8_t* output,
+	uint32_t dataSize
+);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */