首先感谢YYKit
原因很简单
NSURL *url = [NSURL URLWithString:stringURL];
url = nil；
导致bug 的原因是 加密算法有问题字符串之间有空格 和非法字符
bug.png
HMACSHA1.png
正确HMACSHA1加密算法 摘自YYKit
- (NSString *)HMACSHA1EncryptString:(NSString *)string {
NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
size_t size;
switch (kCCHmacAlgSHA1) {
case kCCHmacAlgMD5: size = CC_MD5_DIGEST_LENGTH; break;
case kCCHmacAlgSHA1: size = CC_SHA1_DIGEST_LENGTH; break;
case kCCHmacAlgSHA224: size = CC_SHA224_DIGEST_LENGTH; break;
case kCCHmacAlgSHA256: size = CC_SHA256_DIGEST_LENGTH; break;
case kCCHmacAlgSHA384: size = CC_SHA384_DIGEST_LENGTH; break;
case kCCHmacAlgSHA512: size = CC_SHA512_DIGEST_LENGTH; break;
default: return nil;
}
unsigned char result[size];
const char *cKey = [API_UPLOAD_KEY_HMAC_SHA1 cStringUsingEncoding:NSUTF8StringEncoding];
CCHmac(kCCHmacAlgSHA1, cKey, strlen(cKey), data.bytes, data.length, result);
NSMutableString *hash = [NSMutableString stringWithCapacity:size * 2];
for (int i = 0; i < size; i++) {
[hash appendFormat:@"%02x", result[i]];
}
return hash;
}
