嗨,我正在写一个程序,从一个.pem文件导入私钥,并创建一个私钥对象以供以后使用。 我遇到的问题是一些pem文件头开始
-----BEGIN PRIVATE KEY-----
而其他人则以
-----BEGIN RSA PRIVATE KEY-----
通过我的搜索,我知道第一个是PKCS#8格式的,但我不知道另一个属于什么格式。
嗨,我正在写一个程序,从一个.pem文件导入私钥,并创建一个私钥对象以供以后使用。 我遇到的问题是一些pem文件头开始
-----BEGIN PRIVATE KEY-----
而其他人则以
-----BEGIN RSA PRIVATE KEY-----
通过我的搜索,我知道第一个是PKCS#8格式的,但我不知道另一个属于什么格式。
参见https://polarssl.org/kb/cryptography/asn1-key-structures-in-der-and-pem(搜索“BEGIN RSA PRIVATE KEY”页面)(以防万一,为子孙后代存档链接)。
开始RSA私钥是PKCS#1,只是一个RSA密钥。它本质上只是PKCS#8中的键对象,但是前面没有版本或算法标识符。BEGIN PRIVATE KEY是pkcs# 8,表示密钥类型包含在密钥数据本身中。从链接:
The unencrypted PKCS#8 encoded data starts and ends with the tags: -----BEGIN PRIVATE KEY----- BASE64 ENCODED DATA -----END PRIVATE KEY----- Within the base64 encoded data the following DER structure is present: PrivateKeyInfo ::= SEQUENCE { version Version, algorithm AlgorithmIdentifier, PrivateKey BIT STRING } AlgorithmIdentifier ::= SEQUENCE { algorithm OBJECT IDENTIFIER, parameters ANY DEFINED BY algorithm OPTIONAL } So for an RSA private key, the OID is 1.2.840.113549.1.1.1 and there is a RSAPrivateKey as the PrivateKey key data bitstring.
相对于BEGIN RSA PRIVATE KEY,它总是指定一个RSA密钥,因此不包括密钥类型OID。开始RSA私钥是PKCS#1:
RSA Private Key file (PKCS#1) The RSA private key PEM file is specific for RSA keys. It starts and ends with the tags: -----BEGIN RSA PRIVATE KEY----- BASE64 ENCODED DATA -----END RSA PRIVATE KEY----- Within the base64 encoded data the following DER structure is present: RSAPrivateKey ::= SEQUENCE { version Version, modulus INTEGER, -- n publicExponent INTEGER, -- e privateExponent INTEGER, -- d prime1 INTEGER, -- p prime2 INTEGER, -- q exponent1 INTEGER, -- d mod (p-1) exponent2 INTEGER, -- d mod (q-1) coefficient INTEGER, -- (inverse of q) mod p otherPrimeInfos OtherPrimeInfos OPTIONAL }
看看<openssl/pem.h>。它给出了可能的BEGIN标记。
从上述链接复制内容以供快速参考:
#define PEM_STRING_X509_OLD "X509 CERTIFICATE"
#define PEM_STRING_X509 "CERTIFICATE"
#define PEM_STRING_X509_PAIR "CERTIFICATE PAIR"
#define PEM_STRING_X509_TRUSTED "TRUSTED CERTIFICATE"
#define PEM_STRING_X509_REQ_OLD "NEW CERTIFICATE REQUEST"
#define PEM_STRING_X509_REQ "CERTIFICATE REQUEST"
#define PEM_STRING_X509_CRL "X509 CRL"
#define PEM_STRING_EVP_PKEY "ANY PRIVATE KEY"
#define PEM_STRING_PUBLIC "PUBLIC KEY"
#define PEM_STRING_RSA "RSA PRIVATE KEY"
#define PEM_STRING_RSA_PUBLIC "RSA PUBLIC KEY"
#define PEM_STRING_DSA "DSA PRIVATE KEY"
#define PEM_STRING_DSA_PUBLIC "DSA PUBLIC KEY"
#define PEM_STRING_PKCS7 "PKCS7"
#define PEM_STRING_PKCS7_SIGNED "PKCS #7 SIGNED DATA"
#define PEM_STRING_PKCS8 "ENCRYPTED PRIVATE KEY"
#define PEM_STRING_PKCS8INF "PRIVATE KEY"
#define PEM_STRING_DHPARAMS "DH PARAMETERS"
#define PEM_STRING_DHXPARAMS "X9.42 DH PARAMETERS"
#define PEM_STRING_SSL_SESSION "SSL SESSION PARAMETERS"
#define PEM_STRING_DSAPARAMS "DSA PARAMETERS"
#define PEM_STRING_ECDSA_PUBLIC "ECDSA PUBLIC KEY"
#define PEM_STRING_ECPARAMETERS "EC PARAMETERS"
#define PEM_STRING_ECPRIVATEKEY "EC PRIVATE KEY"
#define PEM_STRING_PARAMETERS "PARAMETERS"
#define PEM_STRING_CMS "CMS"