小写md5
//引入iOS自带密码库
#import <CommonCrypto/CommonCryptor.h>
+ (NSString *)md5:(NSString *)str
{
const char *ptr = [str UTF8String];
unsigned char md5Buffer[CC_MD5_DIGEST_LENGTH];
CC_MD5(ptr, (CC_LONG)strlen(ptr), md5Buffer);
NSMutableString *output = [NSMutableString
stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
[output appendFormat:@"%02x",md5Buffer[i]];
return output;
}
大写MD5
//引入iOS自带密码库
#import <CommonCrypto/CommonCryptor.h>
+ (NSString *)md5:(NSString *)str
{
const char *ptr = [str UTF8String];
unsigned char md5Buffer[CC_MD5_DIGEST_LENGTH];
CC_MD5(ptr, (CC_LONG)strlen(ptr), md5Buffer);
NSMutableString *output = [NSMutableString
stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
[output appendFormat:@"%02X",md5Buffer[i]];
return output;
}
AES加密
//引入iOS自带密码库
#import <CommonCrypto/CommonCryptor.h>
/**
* @brief AES加密
*/
- (NSData*)encryptedWithKey:(NSString*)key andIV:(NSData*)iv {
NSData *keyData = [key dataUsingEncoding:NSUTF8StringEncoding];
size_t dataMoved;
NSMutableData *encryptedData = [NSMutableData dataWithLength:self.length + kCCBlockSizeAES128];
CCCryptorStatus status = CCCrypt(kCCEncrypt,kCCAlgorithmAES128,kCCOptionPKCS7Padding,keyData.bytes,keyData.length,iv.bytes,self.bytes,self.length,encryptedData.mutableBytes, encryptedData.length,&dataMoved);
if (status == kCCSuccess) {
encryptedData.length = dataMoved;
return encryptedData;
}
return nil;
}
/**
* @brief AES解密
*/
- (NSData*)decryptedWithKey:(NSString*)key andIV:(NSData*)iv {
NSData *keyData = [key dataUsingEncoding:NSUTF8StringEncoding];
size_t dataMoved;
NSMutableData *decryptedData = [NSMutableData dataWithLength:self.length + kCCBlockSizeAES128];
CCCryptorStatus result = CCCrypt(kCCDecrypt,kCCAlgorithmAES128,kCCOptionPKCS7Padding,keyData.bytes,keyData.length,iv.bytes,self.bytes,self.length,decryptedData.mutableBytes, decryptedData.length,&dataMoved);
if (result == kCCSuccess) {
decryptedData.length = dataMoved;
return decryptedData;
}
return nil;
}
3DES加密
//引入iOS自带密码库
#import <CommonCrypto/CommonCryptor.h>
/**
* @brief 3DES加密
*/
- (NSData*)encryptedWithKey:(NSString*)key andIV:(NSData*)iv {
NSData *keyData = [key dataUsingEncoding:NSUTF8StringEncoding];
size_t dataMoved;
NSMutableData *encryptedData = [NSMutableData dataWithLength:self.length + kCCBlockSize3DES];
CCCryptorStatus result = CCCrypt(kCCEncrypt,kCCAlgorithm3DES,kCCOptionPKCS7Padding,keyData.bytes,keyData.length,iv.bytes,self.bytes,self.length,encryptedData.mutableBytes,encryptedData.length,&dataMoved);
if (result == kCCSuccess) {
encryptedData.length = dataMoved;
return encryptedData;
}
return nil;
}
/**
* @brief 3DES解密
*/
- (NSData*)decryptedWithKey:(NSString*)key andIV:(NSData*)iv {
NSData *keyData = [key dataUsingEncoding:NSUTF8StringEncoding];
size_t dataMoved;
NSMutableData *decryptedData = [NSMutableData dataWithLength:self.length + kCCBlockSize3DES];
CCCryptorStatus result = CCCrypt(kCCDecrypt,kCCAlgorithm3DES,kCCOptionPKCS7Padding,keyData.bytes,keyData.length,iv.bytes,self.bytes,self.length,decryptedData.mutableBytes,decryptedData.length,&dataMoved);
if (result == kCCSuccess) {
decryptedData.length = dataMoved;
return decryptedData;
}
return nil;
}
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