接口RSA加密

生活不易，一直在前进，一直在学习 工作中用到了RSA非对称加密,与java进行对接 对方实现的是分段加密，分段解密 python生成rsa加密的公钥和密钥 在线生成rsa公钥密钥

http://tool.chacuo.net/cryptrsakeyvalid

PKCS1私钥生成

openssl genrsa -out private.pem 1024

PKCS1私钥转换为PKCS8(该格式一般Java调用)

openssl pkcs8 -topk8 -inform PEM -in private.pem -outform pem -nocrypt -out pkcs8.pem

PKCS8格式私钥转换为PKCS1（传统私钥格式）

openssl rsa -in pkcs8.pem -out pkcs1.pem

python也可以实现分段加密，分段解密

def minsheng_encrypt(biz_content): ''' rsa加密 :param biz_content: :param public_key: :return: ''' public_key = open('min.pem').read() public_key = rsa.PublicKey.load_pkcs1_openssl_pem(public_key) biz_content = biz_content.encode('utf-8') # 1024bit key default_encrypt_length = 117 len_content = len(biz_content) if len_content < default_encrypt_length: return base64.b64encode(rsa.encrypt(biz_content, public_key)) offset = 0 params_lst = [] while len_content - offset > 0: if len_content - offset > default_encrypt_length: params_lst.append(rsa.encrypt(biz_content[offset:offset+default_encrypt_length], public_key)) else: params_lst.append(rsa.encrypt(biz_content[offset:], public_key)) offset += default_encrypt_length target = ''.join(params_lst) return base64.b64encode(target) def minsheng_decrypt(biz_content): ''' rsa解密 :param biz_content: :param private_key: :return: ''' private_key = open('ik.pem').read() priv_key = rsa.PrivateKey._load_pkcs1_pem(private_key) biz_content = base64.b64decode(biz_content.encode('utf-8')) # 1024bit key default_length = 128 len_content = len(biz_content) if len_content < default_length: return rsa.decrypt(biz_content, priv_key) offset = 0 params_lst = [] while len_content - offset > 0: if len_content - offset > default_length: params_lst.append(rsa.decrypt(biz_content[offset: offset+default_length], priv_key)) else: params_lst.append(rsa.decrypt(biz_content[offset:], priv_key)) offset += default_length target = ''.join(params_lst) return target