为流行的消息摘要格式（MD5、SHA1 和 SHA256）以及基于散列的消息认证代码（HMAC）提供了方便的包装器。

示例

使用消息摘要

// import the categories
#import "NSString+MD5Digest.h"
#import "NSString+SHA1Digest.h"
#import "NSString+SHA256Digest.h"

// use them
NSString* source = @"hello world";
[source MD5HexDigest];    // => @"5eb63bbbe01eeed093cb22bb8f5acdc3"
[source SHA1HexDigest];   // => @"2aae6c35c94fcfb415dbe95f408b9ce91ee846ed"
[source SHA256HexDigest]; // => @"b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"

使用 HMAC

// import the categories
#import "NSString+MD5HMAC.h"
#import "NSString+SHA1HMAC.h"
#import "NSString+SHA256HMAC.h"

// use them
NSString* source = @"The quick brown fox jumps over the lazy dog";
NSString* key = @"key";

[source MD5HMACWithKey:key];    // => @"80070713463e7749b90c2dc24911e275"
[source SHA1HMACWithKey:key];   // => @"de7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9"
[source SHA256HMACWithKey:key]; // => @"f7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8"

版权

版权所有 (c) 2013 Francis Chong。本软件在 MIT 许可下发布。有关详细信息，请参阅 LICENSE。