PHP 生成公钥私钥，加密解密，签名验签
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test_encry.php
<?php //创建私钥，公钥 //create_key(); //要加密内容$str = "test_str"; //加密$encrypt_str = test_encrypt($str); //解密$decrypt_str = test_decrypt($encrypt_str); //echo $decrypt_str;exit; //签名$sign_str = sign ( $decrypt_str ); // echo $sign_str;exit; //验签$res = verify ( $decrypt_str, $sign_str ); var_dump ( $res ); exit (); //创建秘钥对function create_key(){ //配置信息 //配置需要用到环境配置文件 openssl.cnf，这里文件地址如下$config_path = "D:\ApacheServer\Apache\conf\openssl.cnf"; $config = array( "digest_alg" => "sha512", "private_key_bits" => 4096, // 字节数 512 1024 2048 4096 等 ,不能加引号，此处长度与加密的字符串长度有关系 "private_key_type" => OPENSSL_KEYTYPE_RSA, // 加密类型 ‘config‘ => $config_path ); $new_key = openssl_pkey_new($config); if ( $new_key == false ){ returnfalse; } //提取私钥 //$private_key 这里作为引用变量 openssl_pkey_export($new_key, $private_key, null, $config); //生成公钥$public_key = openssl_pkey_get_details($new_key); // var_dump($public_key);$public_key = $public_key["key"]; //显示数据 //var_dump($public_key); //公钥 //var_dump($private_key); //私钥file_put_contents("./testpublic.pem", $public_key); file_put_contents("./testprivate.pem", $private_key); openssl_free_key($new_key); } // 数据接收方创建一套密钥对，把公钥给发送方（一或多个发送方），发送方用公钥加密数据，发给接收方，接收方用私钥解密获取数据 // 接受方的密钥对 /** 公钥加密 @param $str 要加密的明文 */function test_encrypt($str) { $cert_file = "./testpublic.pem"; // 读取公钥内容$public_key = file_get_contents ( $cert_file ); // 转成openssl对象$public_key = openssl_get_publickey ( $public_key ); // 进行加密，$encrypt_str 为引用变量 openssl_public_encrypt ( $str, $encrypt_str, $public_key ); // base64转码$encrypt_str = base64_encode ( $encrypt_str ); return$encrypt_str; } /** 私钥解密 @param $encrypt_str 要解密的密文 */function test_decrypt($encrypt_str) { $cert_file = "./testprivate.pem"; // 读取私钥内容$private_key = file_get_contents ( $cert_file ); // 转成openssl对象$private_key = openssl_get_privatekey ( $private_key ); // base64解码$encrypt_str = base64_decode ( $encrypt_str ); openssl_private_decrypt ( $encrypt_str, $decrypt_str, $private_key ); return$decrypt_str; } // 数据发送方创建一套密钥对，把公钥给接收方，发送方用私钥签名数据，发给接收方。接收方将“解密后的明文、收到的签名、发送方生成的公钥”三个数据一起来验签，验证通过则表示发送方是真实有效的（签名就是为排除冒充发送方发信息的行为） // 发送方的密钥对（这里为方便，用同一套密钥对） /** 私钥签名 @param $plain 要签名的明文 */function sign($plain) { // $log = new Logger();try { // 用户私钥证书$cert_file = "./testprivate.pem"; $priv_key = file_get_contents ( $cert_file ); $pkeyid = openssl_get_privatekey ( $priv_key ); if (! is_resource ( $pkeyid )) { returnFALSE; } // compute signature openssl_sign ( $plain, $signature, $pkeyid, OPENSSL_ALGO_SHA256 ); // free the key from memory openssl_free_key ( $pkeyid ); // $log->logInfo("Signature string for：".$signature);returnbase64_encode ( $signature ); } catch ( Exception$e ) { // $log->logInfo("Signature attestation failure".$e->getMessage()); } } /** 公钥验签 @param $plain 验签明文 @param $signature 验签密文 */function verify($plain, $signature) { $cert_file = "./testpublic.pem"; $signature = base64_decode ( $signature ); $cert = file_get_contents ( $cert_file ); $pubkeyid = openssl_get_publickey ( $cert ); if (! is_resource ( $pubkeyid )) { returnFALSE; } $ok = openssl_verify ( $plain, $signature, $pubkeyid, OPENSSL_ALGO_SHA256 ); @openssl_free_key ( $pubkeyid ); if ($ok == 1) { returnTRUE; } elseif ($ok == 0) { returnFALSE; } else { returnFALSE; } returnFALSE; }
testprivate.pem
-----BEGIN PRIVATEKEY----- MIIJQgIBADANBgkqhkiG9w0BAQEFAASCCSwwggkoAgEAAoICAQDI7ysitVvgmHod BwccHcgbaKANaDyMXJ30wkJRcaygZohZJkMlExsz9lPtlPUMrkH+QkJSzzIP9Nr2 46LCKG5xDzRBzJbgcdsqjQk4sdSDGdiqOyIloHvYkQQvFRcStGjrIGswiU3NXvU3 kRG1ep1DvbsYTKYpkWkMxj9UJhgdkhoGgWgV6ijsbKiS2q6hcjfyh1A4fL9IT+Ge 5zewuzzY6HFCoWnJ40EsC6AbxqpK+JL78pmG6K8KFNF3mu98IgH8ziNn15qvGjRO FLysyTynMf42uKJNzZVN/keo3kxesNZDn/W3D+QiWyZCigkZZ9TAVsfzYNFfcYRH 3GZgZ3LgzjwX7heQUUMnDy8lHaK9yhodW30d7fDt5veghojWYkkVlrag50PJyJqs U6TihB/tqtFeFChIBhcHYSZ/Z5ISlCUJl3geB5uuUJRfusjRpdVsB4RzyaWziXXp d4Gbl3LoRPBo7ehzvt+4pnqkRPZigYKuaXF5q7KQ0OtRhtuGj56VHizXqv8TAcsU +xGMxeFoDR0mwpPkJ/G3bawuEPAlrBdDyzDWltE3wU6GeHsh6KCOBBv4XjkkZk/L sm3q4QAFZm31gL7dJzC4UiPHf264GG35Xgdso9OJlIhlihNwo4yZCtP/yuykXwwj yjSOT7s9JrFLwjn/j8rE0rmWp/p1nwIDAQABAoICAGaWVXufBI2iy5XOZL7iJax4 ul6d/WvcTXkNRTa3xt8N+kcp1dYz7wuUlD0UdBhJT8A0rBADYRfsd27dwddHNTvb +14syktFVhRfdXnQsSNOKuSe1ExJp3FmeLBhICqYmYiSQKfDMknMVX5NPrFdLLXN RJyfZaaLawrunJ6l5GIUmd0AbNfjeYlb4KU5qTccTZwxoa91YWPWBOdQPYqpzeMg qdLO/mfo8vk95jzILWGhj8m6js/mNJf9EQTzwZmq80DTLhhyZ7NGubWzuLCu/ZyP Va8yjQsUD0qGrKd2957QwlQ8cwNHxb4Us2/9ca/a5zBcHjIQGFWWa2cVC9/kcS2V 6YP7wg0mS4s1VHh3CM+i9p3DvsPCpTIu9Kvv7fPZGuLqeUwWVcGx39w7B7QOqS/j +0sgcndwl0OO2hoLvprav75Pvk+aIQKccDc1P8c8auCTblp1dSZ0WRDCGH9JZaYp mUMvNllWIkiZU+eye8mL824zC3XcqjTNJOT2+JEregy5aDYnxxABFWre7gXYbtXL 8KGfS+qJuD/Eqryg9b/IEuJpTUn432vjEmnfSEXRAf6W3Bn5VeSDp80VtYRUcg9j MNCtf/Yap9wB0dMG4SJT66tVpd4h6cMVty9/IS9Klnewb6gEhLaK0utTfujOQ6kI n5W1qoIImiLnlbK4Ac3BAoIBAQDqAGMbE1IV6G7P67hWYLz1nPAwjpG2dj+fXcRm 7qFzwYoXU3bXH9Fcf6EtxK6jZYX1J2hxVD2gv9Gqnv8zdM1v47if5xb3HMpYz6ah LjW+6lu+D+dLBdmtKYGpAnvNqB8+1JviqbF/QDMH5RLZ9wFwqTErafEE4Cq/C1R3 kCaIY/5KC+pjJE7IIp7nYBpwH26tDVGUw873LysOzLLEu3Cyt1jn90nIVw6HzISL ORIPIwiiTn3+Je9M0ucxb6gbJixsKQr2tjY1nlHD9DFPFQKbdgmB0NiDV325VAJE bTZaeHyHyzgl1lzLHTD1V5NxCrtJvjw4640YAzNx08ltMZoJAoIBAQDb0vdJKXND 8t6tvsZUHe6ACT54qUPEVzw/xnU6rBS+bhzyVU/UsapTD1Y6MnjurIWpZedYmiOm sIKicMk1uzn9096LMavkg3Hdu9HwY3UYU7h/cso5R4eGbZogIz3D8I24OgA1rkZE 66Sfvksx3UlRwKc2LqNtzoA12hiyJ9fXZrfaq6/7RlcXXvtqJEvgwSlPXT+HAsdx zVcNS4C3g8/UibvZKJINyRzfTRYkkrmRY7HP5OoBsbhwVrlfJ/0akwgosYecPPT2 i5YR85D7GUdmB/LJv/2uRbeT4XFFVow2nG73dK9f8ppVdcWkVtdz0Vm1d0gNRJhU 3APSvSRv6JxnAoIBAGYOayr43zks2X+XWBtcL62Tl/IljAmfQxpXg/w8oW/h/j80 KMWkW+RSydIzUNN0yNrmKBgdXI+KeYBHvhgMHjlpgTFEUXDPPrVDQ3JSvCAbCI45 U3AWCh0K2EEFE0fbxlzZz28pAX/1WQxdbT5hC2C+efJsTzEIL7yIzXskBJpBujtD PSOmRzHkX5ecA4vZOaUCBQ2z5MVL7iSTRHinI3zemEj7QlO9HFo/6aLq7iRp7C8V ur+ofdjstuaJwzCsEn3N3LlDORtjhFfJXeQWzr9M2NKkannGI9A7go2jcCw/FlkH WeKuvmPbxGmMm4KW4p5D+PH+UdgiNUK00snr8zkCggEBAIf50KM986H1as74sj+4 IB6tGSqUMWoTOB6PCVbYuSAuhtNT+ESt/ZjRZNos/GdO6oMlmNxSxHjIuJX4xE3r WWzskL1zZUu+D0JEexGCxBzfNMIJZJPX7jo2M99rTTqV42Qw5I5QFgFt7fAuSt82 bbMXQ5edc9Rppx8ooJwbT0VbsaCfEQWSti6rv0Mh3pnRglcobDJ8gpiflxiPOrjJ 3VYwOLWUhfvnCmgKjAblh8oqbAQYKrQPlfJPgu0clFDK4IIjhqobfr+/Cn5iNq1M LsEra4BmtWoGkA72phVo+uSREYcac50bOWJhrncAjNeEiURZ24TxiHT9f5PtEcvz jEMCggEAHsyUceW0TEz5dHP/kTuxuGy7tn3mtvr+bAfQH7g3E7PYvN0P58iJHASi VCCuzMApmHeKfErLt2Up2/1527HDonAJJ9X50M5pZvvrIzAKFZmk/s00XpzPSCwX vcKN55kAgHrlj5P76xQ91EdZMqPoLNFRIuIT4wEPUqngFtvGNljuRHWjQkTa2So3 BlI0LJUxajbVANcRdyGcKy6KjsVj0lrYRiZXsH/FQqX4EfscnljqEtB43bKQTAQo M4pBbJ17bq5B3hp4IIGlyKQDyXO68Y7KX5vlLkc2uunc9P/HeWUhMWXWnbccsA8U 0S0WEmpb0TnqG+rz/3OOS5J0DaHv9Q== -----ENDPRIVATEKEY-----
testpublic.pem
-----BEGIN PUBLICKEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyO8rIrVb4Jh6HQcHHB3I G2igDWg8jFyd9MJCUXGsoGaIWSZDJRMbM/ZT7ZT1DK5B/kJCUs8yD/Ta9uOiwihu cQ80QcyW4HHbKo0JOLHUgxnYqjsiJaB72JEELxUXErRo6yBrMIlNzV71N5ERtXqd Q727GEymKZFpDMY/VCYYHZIaBoFoFeoo7GyoktquoXI38odQOHy/SE/hnuc3sLs8 2OhxQqFpyeNBLAugG8aqSviS+/KZhuivChTRd5rvfCIB/M4jZ9earxo0ThS8rMk8 pzH+NriiTc2VTf5HqN5MXrDWQ5/1tw/kIlsmQooJGWfUwFbH82DRX3GER9xmYGdy 4M48F+4XkFFDJw8vJR2ivcoaHVt9He3w7eb3oIaI1mJJFZa2oOdDyciarFOk4oQf 7arRXhQoSAYXB2Emf2eSEpQlCZd4HgebrlCUX7rI0aXVbAeEc8mls4l16XeBm5dy 6ETwaO3oc77fuKZ6pET2YoGCrmlxeauykNDrUYbbho+elR4s16r/EwHLFPsRjMXh aA0dJsKT5Cfxt22sLhDwJawXQ8sw1pbRN8FOhnh7IeigjgQb+F45JGZPy7Jt6uEA BWZt9YC+3ScwuFIjx39uuBht+V4HbKPTiZSIZYoTcKOMmQrT/8rspF8MI8o0jk+7 PSaxS8I5/4/KxNK5lqf6dZ8CAwEAAQ== -----ENDPUBLICKEY-----
openssl.cnf
#
#
OpenSSL example configuration file.
#
This is mostly being used for generation of certificate requests.
#
#
This definition stops the following lines choking if HOME isn‘t
#
defined.
HOME = .
RANDFILE = $ENV::HOME/.rnd
# Extra OBJECT IDENTIFIER info:
#oid_file = $ENV::HOME/.oid
oid_section = new_oids
# To use this configuration file with the "-extfile" option of the
# "openssl x509" utility, name here the section containing the
# X.509v3 extensions to use:
# extensions =
# (Alternatively, use a configuration file that has only
# X.509v3 extensions in its main [= default] section.)
[ new_oids ]
# We can add new OIDs in here for use by ‘ca‘, ‘req‘ and ‘ts‘.
# Add a simple OID like this:
# testoid1=1.2.3.4
# Or use config file substitution like this:
# testoid2=${testoid1}.5.6# Policies used by the TSA examples.
tsa_policy1 = 1.2.3.4.1
tsa_policy2 = 1.2.3.4.5.6
tsa_policy3 = 1.2.3.4.5.7
####################################################################[ ca ]
default_ca = CA_default # The default ca section####################################################################[ CA_default ]
dir = ./demoCA # Where everything is kept
certs = $dir/certs # Where the issued certs are kept
crl_dir = $dir/crl # Where the issued crl are kept
database = $dir/index.txt # database index file.
#unique_subject = no # Set to ‘no‘ to allow creation of# several ctificates with same subject.
new_certs_dir = $dir/newcerts # default place for new certs.
certificate = $dir/cacert.pem # The CA certificate
serial = $dir/serial # The current serial number
crlnumber = $dir/crlnumber # the current crl number# must be commented out to leave a V1 CRL
crl = $dir/crl.pem # The current CRL
private_key = $dir/private/cakey.pem# The private key
RANDFILE = $dir/private/.rand# private random number file
x509_extensions = usr_cert # The extentions to add to the cert# Comment out the following two lines for the "traditional"
# (and highly broken) format.
name_opt = ca_default # Subject Name options
cert_opt = ca_default # Certificate field options# Extension copying option: use with caution.
# copy_extensions = copy# Extensions to add to a CRL. Note: Netscape communicator chokes on V2 CRLs
# so this is commented out by default to leave a V1 CRL.
# crlnumber must also be commented out to leave a V1 CRL.
# crl_extensions = crl_ext
default_days = 365 # how long to certify for
default_crl_days= 30 # how long before next CRL
default_md = default# use public key default MD
preserve = no # keep passed DN ordering# A few difference way of specifying how similar the request should look
# For type CA, the listed attributes must be the same, and the optional
# and supplied fields are just that :-)
policy = policy_match
# For the CA policy[ policy_match ]
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
# For the ‘anything‘ policy
# At this point in time, you must list all acceptable ‘object‘
# types.[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
####################################################################[ req ]
default_bits = 1024
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
x509_extensions = v3_ca # The extentions to add to the self signed cert# Passwords for private keys if not present they will be prompted for
# input_password = secret
# output_password = secret# This sets a mask for permitted string types. There are several options.
# default: PrintableString, T61String, BMPString.
# pkix : PrintableString, BMPString (PKIX recommendation before 2004)
# utf8only: only UTF8Strings (PKIX recommendation after 2004).
# nombstr : PrintableString, T61String (no BMPStrings or UTF8Strings).
# MASK:XXXX a literal mask value.
# WARNING: ancient versions of Netscape crash on BMPStrings or UTF8Strings.
string_mask = utf8only
# req_extensions = v3_req # The extensions to add to a certificate request
[ req_distinguished_name ]
countryName = Country Name (2 letter code)
countryName_default = AU
countryName_min = 2
countryName_max = 2
stateOrProvinceName = State or Province Name (full name)
stateOrProvinceName_default = Some-State
localityName = Locality Name (eg, city)
0.organizationName = Organization Name (eg, company)
0.organizationName_default = Internet Widgits Pty Ltd
# we can do this but it is not needed normally :-)
#1.organizationName = Second Organization Name (eg, company)
#1.organizationName_default = World Wide Web Pty Ltd
organizationalUnitName = Organizational Unit Name (eg, section)
#organizationalUnitName_default =
commonName = Common Name (e.g. server FQDN or YOUR name)
commonName_max = 64
emailAddress = Email Address
emailAddress_max = 64
# SET-ex3 = SET extension number 3
[ req_attributes ]
challengePassword = A challenge password
challengePassword_min = 4
challengePassword_max = 20
unstructuredName = An optional company name
[ usr_cert ]
# These extensions are added when ‘ca‘ signs a request.# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE# Here are some examples of the usage of nsCertType. If it is omitted
# the certificate can be used for anything *except* object signing.# This is OK for an SSL server.
# nsCertType = server# For an object signing certificate this would be used.
# nsCertType = objsign# For normal client use this is typical
# nsCertType = client, email# and for everything including object signing:
# nsCertType = client, email, objsign# This is typical in keyUsage for a client certificate.
# keyUsage = nonRepudiation, digitalSignature, keyEncipherment# This will be displayed in Netscape‘s comment listbox.
nsComment = "OpenSSL Generated Certificate"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
# An alternative to produce certificates that aren‘t
# deprecated according to PKIX.
# subjectAltName=email:move# Copy subject details
# issuerAltName=issuer:copy#nsCaRevocationUrl = http://www.domain.dom/ca-crl.pem
#nsBaseUrl
#nsRevocationUrl
#nsRenewalUrl
#nsCaPolicyUrl
#nsSslServerName# This is required for TSA certificates.
# extendedKeyUsage = critical,timeStamping
[ v3_req ]
# Extensions to add to a certificate request
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
[ v3_ca ]
# Extensions for a typical CA# PKIX recommendation.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer
# This is what PKIX recommends but some broken software chokes on critical
# extensions.
#basicConstraints = critical,CA:true
# So we do this instead.
basicConstraints = CA:true# Key usage: this is typical for a CA certificate. However since it will
# prevent it being used as an test self-signed certificate it is best
# left out by default.
# keyUsage = cRLSign, keyCertSign# Some might want this also
# nsCertType = sslCA, emailCA# Include email address in subject alt name: another PKIX recommendation
# subjectAltName=email:copy
# Copy issuer details
# issuerAltName=issuer:copy# DER hex encoding of an extension: beware experts only!
# obj=DER:02:03
# Where ‘obj‘ is a standard or added object
# You can even override a supported extension:
# basicConstraints= critical, DER:30:03:01:01:FF
[ crl_ext ]
# CRL extensions.
# Only issuerAltName and authorityKeyIdentifier make any sense in a CRL.# issuerAltName=issuer:copy
authorityKeyIdentifier=keyid:always
[ proxy_cert_ext ]
# These extensions should be added when creating a proxy certificate# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE# Here are some examples of the usage of nsCertType. If it is omitted
# the certificate can be used for anything *except* object signing.# This is OK for an SSL server.
# nsCertType = server# For an object signing certificate this would be used.
# nsCertType = objsign# For normal client use this is typical
# nsCertType = client, email# and for everything including object signing:
# nsCertType = client, email, objsign# This is typical in keyUsage for a client certificate.
# keyUsage = nonRepudiation, digitalSignature, keyEncipherment# This will be displayed in Netscape‘s comment listbox.
nsComment = "OpenSSL Generated Certificate"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
# An alternative to produce certificates that aren‘t
# deprecated according to PKIX.
# subjectAltName=email:move# Copy subject details
# issuerAltName=issuer:copy#nsCaRevocationUrl = http://www.domain.dom/ca-crl.pem
#nsBaseUrl
#nsRevocationUrl
#nsRenewalUrl
#nsCaPolicyUrl
#nsSslServerName# This really needs to be in place for it to be a proxy certificate.
proxyCertInfo=critical,language:id-ppl-anyLanguage,pathlen:3,policy:foo
####################################################################[ tsa ]
default_tsa = tsa_config1 # the default TSA section
[ tsa_config1 ]
# These are used by the TSA reply generation only.dir = ./demoCA # TSA root directory
serial = $dir/tsaserial # The current serial number (mandatory)
crypto_device = builtin # OpenSSL engine to use for signing
signer_cert = $dir/tsacert.pem # The TSA signing certificate# (optional)
certs = $dir/cacert.pem # Certificate chain to include in reply# (optional)
signer_key = $dir/private/tsakey.pem # The TSA private key (optional)
default_policy = tsa_policy1 # Policy if request did not specify it# (optional)
other_policies = tsa_policy2, tsa_policy3 # acceptable policies (optional)
digests = md5, sha1# Acceptable message digests (mandatory)
accuracy = secs:1, millisecs:500, microsecs:100 # (optional)
clock_precision_digits = 0 # number of digits after dot. (optional)
ordering = yes # Is ordering defined for timestamps?# (optional, default: no)
tsa_name = yes # Must the TSA name be included in the reply?# (optional, default: no)
ess_cert_id_chain = no # Must the ESS cert id chain be included?# (optional, default: no)
原文：https://www.cnblogs.com/dreamhome/p/11530021.html
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