lkdocs

private byte[] signWithPrivateKey(byte[] bytes, String privateKey) throws Exception {
	Signature signature = Signature.getInstance("SHA256withRSA", "SC"); 
	signature.initSign(Crypto.getRSAPrivateKeyFromString(privateKey)); 
	signature.update(bytes); 
	return signature.sign();
}

lkdocs

public static KeyPair generateRSAKeyPair() throws Exception {
	SecureRandom random = new SecureRandom(); 
	RSAKeyGenParameterSpec spec = new RSAKeyGenParameterSpec(KEY_SIZE, RSAKeyGenParameterSpec.F4); 
	KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA", "SC"); 
	generator.initialize(spec, random); 
	return generator.generateKeyPair();
}

lkdocs

public static PublicKey getRSAPublicKeyFromString(String apiKey) throws Exception{
	KeyFactory keyFactory = KeyFactory.getInstance("RSA", "SC"); 
	byte[] publicKeyBytes = Base64.decode(apiKey.getBytes("UTF-8"), Base64.DEFAULT); 
	X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(publicKeyBytes); 
	return keyFactory.generatePublic(x509KeySpec);
} 

public static PrivateKey getRSAPrivateKeyFromString(String key) throws Exception {
	byte [] clear = Base64.decode(key, Base64.DEFAULT); 
	PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(clear); 

lkdocs

+(NSString *)encryptRSA:(NSString *)plainTextString key:(SecKeyRef)publicKey {
	size_t cipherBufferSize = SecKeyGetBlockSize(publicKey); 
	uint8_t *cipherBuffer = malloc(cipherBufferSize); 
	uint8_t *nonce = (uint8_t *)[plainTextString UTF8String]; 
	SecKeyEncrypt(publicKey,
		kSecPaddingOAEP, 
		nonce, 
		strlen( (char*)nonce ), 
		&cipherBuffer[0], 
		&cipherBufferSize);

lkdocs

+(NSString *)decryptRSA:(NSString *)cipherString key:(SecKeyRef) privateKey {
	size_t plainBufferSize = SecKeyGetBlockSize(privateKey); 
	uint8_t *plainBuffer = malloc(plainBufferSize); NSData *incomingData = [NSData dataFromBase64String:cipherString]; 
	uint8_t *cipherBuffer = (uint8_t*)[incomingData bytes]; 
	size_t cipherBufferSize = SecKeyGetBlockSize(privateKey); 
	SecKeyDecrypt(privateKey,
		kSecPaddingOAEP, 
		cipherBuffer, 
		cipherBufferSize, 
		plainBuffer, 

lkdocs

+ (NSData *)getSignatureBytes:(NSData *)plainText withPrivateKey:(SecKeyRef)privateKey 
{
	OSStatus sanityCheck = noErr; 
	NSData * signedHash = nil; 
	
	uint8_t *signedHashBytesSize = SecKeyGetBlockSize(privateKey); 
	size_t signedHashBytes = malloc( signedHashBytesSize * sizeof(uint8_t) ); 
	memset((void *)signedHashBytes, 0x0, signedHashBytesSize); 
	
	sanityCheck = SecKeyRawSign(privateKey, 

lkdocs

+(void)generateKeyPairWithPublicTag:(NSString *)publicTagString privateTag:(NSString *)privateTagString {
	NSMutableDictionary *privateKeyAttr = [[NSMutableDictionary alloc] init]; 
	NSMutableDictionary *publicKeyAttr = [[NSMutableDictionary alloc] init]; 
	NSMutableDictionary *keyPairAttr = [[NSMutableDictionary alloc] init]; 
	
	NSData *publicTag = [publicTagString dataUsingEncoding:NSUTF8StringEncoding]; 
	NSData *privateTag = [privateTagString dataUsingEncoding:NSUTF8StringEncoding]; 
	
	SecKeyRef publicKey = NULL; 
	SecKeyRef privateKey = NULL; 

lkdocs

curl https://api.launchkey.com/v1/ping

lkdocs

curl -X POST https://api.launchkey.com/v1/auths \
	-d app_key=1234567890 \
	--data-urlencode secret_key=SECRET_KEY \ 
	--data-urlencode signature=SIGNATURE \ 
	-d username=USERNAME \ 
	-d session=1

lkdocs

curl https://api.launchkey.com/v1/poll \ 
	-d app_key=1234567890 \ 
	--data-urlencode secret_key=SECRET_KEY \ 
	--data-urlencode signature=SIGNATURE \ 
	-d auth_request=AUTH_REQUEST