✨ Add SHA1

BitcoinCashKit · Aug 8, 2018 · 665a216 · 665a216
1 parent 0bc4ede
commit 665a216
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Showing 4 changed files with 14 additions and 4 deletions.
diff --git a/BitcoinCashKit/Core/BitcoinCashKitPrivate.h b/BitcoinCashKit/Core/BitcoinCashKitPrivate.h
@@ -29,6 +29,7 @@
 NS_ASSUME_NONNULL_BEGIN
 @interface _Hash : NSObject
 
++ (NSData *)sha1:(NSData *)data;
 + (NSData *)sha256:(NSData *)data;
 + (NSData *)ripemd160:(NSData *)data;
 + (NSData *)hmacsha512:(NSData *)data key:(NSData *)key;

diff --git a/BitcoinCashKit/Core/BitcoinCashKitPrivate.m b/BitcoinCashKit/Core/BitcoinCashKitPrivate.m
@@ -32,6 +32,12 @@
 
 @implementation _Hash
 
++ (NSData *)sha1:(NSData *)data {
+    NSMutableData *result = [NSMutableData dataWithLength:SHA512_DIGEST_LENGTH];
+    SHA1(data.bytes, data.length, result.mutableBytes);
+    return result;
+}
+
 + (NSData *)sha256:(NSData *)data {
     NSMutableData *result = [NSMutableData dataWithLength:SHA256_DIGEST_LENGTH];
     SHA256(data.bytes, data.length, result.mutableBytes);

diff --git a/BitcoinCashKit/Core/Crypto.swift b/BitcoinCashKit/Core/Crypto.swift
@@ -28,6 +28,10 @@ import BitcoinCashKit.Private
 import secp256k1
 
 public struct Crypto {
+    public static func sha1(_ data: Data) -> Data {
+        return _Hash.sha1(data)
+    }
+
     public static func sha256(_ data: Data) -> Data {
         return _Hash.sha256(data)
     }

diff --git a/BitcoinCashKit/Core/Scripts/OP_CODE/Crypto Operators/OP_SHA1.swift b/BitcoinCashKit/Core/Scripts/OP_CODE/Crypto Operators/OP_SHA1.swift
@@ -18,9 +18,8 @@ public struct OpSha1: OpCodeProtocol {
     public func mainProcess(_ context: ScriptExecutionContext) throws {
         try context.assertStackHeightGreaterThan(1)
 
-        // TODO: Implement Crypto.sha1()
-        //let data: Data = context.stack.removeLast()
-        //let hash: Data = Crypto.sha1(data)
-        //context.stack.append(hash)
+        let data: Data = context.stack.removeLast()
+        let hash: Data = Crypto.sha1(data)
+        context.stack.append(hash)
     }
 }