使用Ed25519给数据签名(oc版)

发布网友发布时间：2022-11-16 10:43

共1个回答

热心网友时间：2024-11-24 21:36

//==============BlinkEd25519.h===========//

#import <Foundation/Foundation.h>

#include "Ed25519.h"

@interfaceEd25519Keypair :NSObject

@property (nonatomic,strong) NSData *publickey;//公钥32位

@property (nonatomic,strong) NSData *privatekey;//私钥64位

@end

NS_ASSUME_NONNULL_BEGIN

@interfaceBlinkEd25519 :NSObject

/**

生成ed25519密钥串

@return Ed25519Keypair对象，保存一对密钥串

*/

+(Ed25519Keypair*)generateEd25519KeyPair;

/**

签名数据

@param ed25519keypair 密钥串

@param content 需要签名的数据(json格式的字符串)

@return 签名后的数据

*/

+(NSData*)BLinkEd25519_Signature:(Ed25519Keypair*)ed25519keypair Content:(NSString*)content;

/**

验证签名数据

@param signatureData 签名数据

@param contentData 签名前数据

@param ed25519keypair ed25519密钥串

@return 返回是否

*/

+(BOOL)BlinkEd25519_Verify:(NSData*)signatureData content:(NSData*)contentData Ed25519Keypair:(Ed25519Keypair*)ed25519keypair;

@end

//==============BlinkEd25519.m===========//

#import "BlinkEd25519.h"

@implementation Ed25519Keypair

@end

@implementation BlinkEd25519

+(Ed25519Keypair*)generateEd25519KeyPair

{

unsignedcharseed[32],publickey[32],privatekey[64];

ed25519_create_seed(seed);

ed25519_create_keypair(publickey, privatekey, seed);

Ed25519Keypair *keypair = [[Ed25519Keypair alloc] init];

keypair.publickey= [NSDatadataWithBytes:publickeylength:32];

keypair.privatekey= [NSDatadataWithBytes:privatekeylength:64];

returnkeypair;

}

+(NSData*)BLinkEd25519_Signature:(Ed25519Keypair*)ed25519keypair Content:(NSString*)content

{

unsignedcharsignature[64];

NSData *contentData = [content dataUsingEncoding:NSUTF8StringEncoding];

ed25519_sign(signature, [contentDatabytes], contentData.length, [ed25519keypair.publickeybytes], [ed25519keypair.privatekeybytes]);

return[NSDatadataWithBytes:signaturelength:64];

}

+(BOOL)BlinkEd25519_Verify:(NSData*)signatureData content:(NSData*)contentData Ed25519Keypair:(Ed25519Keypair*)ed25519keypair

{

returned25519_verify([signatureDatabytes], [contentDatabytes], contentData.length, [ed25519keypair.privatekeybytes]);

}

@end