linux openssl是什么

OpenSSL> help
 Standard commands
 asn1parse ca ciphers cms
 crl crl2pkcs7 dgst dhparam
 dsa dsaparam ec ecparam
 enc engine errstr gendsa
 genpkey genrsa help list
 nseq ocsp passwd pkcs12
 pkcs7 pkcs8 pkey pkeyparam
 pkeyutl prime rand rehash
 req rsa rsautl s_client
 s_server s_time sess_id smime
 speed spkac srp storeutl
 ts verify version x509
 Message Digest commands (see the `dgst’ command for more details)
 blake2b512 blake2s256 gost md4
 md5 mdc2 rmd160 sha1
 sha224 sha256 sha3-224 sha3-256
 sha3-384 sha3-512 sha384 sha512
 sha512-224 sha512-256 shake128 shake256
 sm3
 Cipher commands (see the `enc’ command for more details)
 aes-128-cbc aes-128-ecb aes-192-cbc aes-192-ecb
 aes-256-cbc aes-256-ecb aria-128-cbc aria-128-cfb
 aria-128-cfb1 aria-128-cfb8 aria-128-ctr aria-128-ecb
 aria-128-ofb aria-192-cbc aria-192-cfb aria-192-cfb1
 aria-192-cfb8 aria-192-ctr aria-192-ecb aria-192-ofb
 aria-256-cbc aria-256-cfb aria-256-cfb1 aria-256-cfb8
 aria-256-ctr aria-256-ecb aria-256-ofb base64
 bf bf-cbc bf-cfb bf-ecb
 bf-ofb camellia-128-cbc camellia-128-ecb camellia-192-cbc
 camellia-192-ecb camellia-256-cbc camellia-256-ecb cast
 cast-cbc cast5-cbc cast5-cfb cast5-ecb
 cast5-ofb des des-cbc des-cfb
 des-ecb des-ede des-ede-cbc des-ede-cfb
 des-ede-ofb des-ede3 des-ede3-cbc des-ede3-cfb
 des-ede3-ofb des-ofb des3 desx
 idea idea-cbc idea-cfb idea-ecb
 idea-ofb rc2 rc2-40-cbc rc2-64-cbc
 rc2-cbc rc2-cfb rc2-ecb rc2-ofb
 rc4 rc4-40 seed seed-cbc
 seed-cfb seed-ecb seed-ofb sm4-cbc
 sm4-cfb sm4-ctr sm4-ecb sm4-ofb

OpenSSL> version
 OpenSSL 1.1.1h 22 Sep 2020

(base) [root@sun-site certs]# echo “wuhs” |openssl base64
 d3Vocwo=
 (base) [root@sun-site certs]# echo “wuhs” > 1.txt
 (base) [root@sun-site certs]# openssl base64 -in 1.txt
 d3Vocwo=

(base) [root@sun-site certs]# echo “d3Vocwo=” | openssl base64 -d
 wuhs
 (base) [root@sun-site certs]# openssl base64 -d -in 1.base64
 wuhs

(base) [root@sun-site certs]# openssl rand -base64 10 |cut -c 1-12
 PGznlV5Og0Us

(base) [root@sun-site certs]# echo wuhs | openssl md5
 (stdin)= 4cdb1fbd6a34ff27dc8c10913fab3e7e
 (base) [root@sun-site certs]# openssl md5 1.txt
 MD5(1.txt)= 4cdb1fbd6a34ff27dc8c10913fab3e7e

(base) [root@sun-site certs]# openssl sha1 1.txt
 SHA1(1.txt)= bd8f0b20de17d623608218d05e8741502cf42302
 (base) [root@sun-site certs]# echo wuhs | openssl sha1
 (stdin)= bd8f0b20de17d623608218d05e8741502cf42302

(base) [root@sun-site certs]# openssl aes-128-cbc -in 1.txt -k 123 -base64
 *** WARNING : deprecated key derivation used.
 Using -iter or -pbkdf2 would be better.
 U2FsdGVkX194Z8P5c7C8vmXbA39omlqU/ET8xaehVFk=

(base) [root@sun-site certs]# openssl aes-128-cbc -d -k 123 -base64 -in 2.txt
 *** WARNING : deprecated key derivation used.
 Using -iter or -pbkdf2 would be better.
 wuhs

(base) [root@sun-site tmp]# openssl genrsa -des3 -out sunsite.key 2048
 Generating RSA private key, 2048 bit long modulus (2 primes)
 …+++++
 …+++++
 e is 65537 (0x010001)
 Enter pass phrase for sunsite.key:
 Verifying - Enter pass phrase for sunsite.key:
 (base) [root@sun-site tmp]# ll
 total 16
 -rw------- 1 root root 1751 Oct 25 14:43 sunsite.key

(base) [root@sun-site tmp]# openssl rsa -check -in sunsite.key
 Enter pass phrase for sunsite.key:
 RSA key ok
 writing RSA key
 -----BEGIN RSA PRIVATE KEY-----
 MIIEpAIBAAKCAQEA1jDreCAjX5kpNmnyNayQB/GUvyIRvZZM2WoKAIjne91JupgP
 OKmBdYSWeWsf0h0XU9ubhCHpgCss2hdRKxLN3rJLlFD98TUKpb9S2XkfrT9s3cLN
 PQyCELK60zrs1sE52I4pDj4nTZPZCL9mykzqwNa5rcGuHN/lLnvJxFPJOJwVWbVE
 Bvh+jGioJbi+Ar0rs37/8naGBYz5k4BFn5sCKrhssoMEpDWjMz4yJMpycTlEFITa
 …

(base) [root@sun-site tmp]# openssl rsa -des3 -in sunsite.key -out sunsite.key
 writing RSA key
 Enter PEM pass phrase:
 Verifying - Enter PEM pass phrase:

(base) [root@sun-site tmp]# openssl rsa -in sunsite.key -out sunsite2.key
 Enter pass phrase for sunsite.key:
 writing RSA key

(base) [root@sun-site tmp]# openssl req \
 -key sunsite.key \
 -new -out sunsite.csr
 You are about to be asked to enter information that will be incorporated
 into your certificate request.
 What you are about to enter is what is called a Distinguished Name or a DN.
 There are quite a few fields but you can leave some blank
 For some fields there will be a default value,
 If you enter ‘.’, the field will be left blank.
 -----
 Country Name (2 letter code) [AU]:CN
 State or Province Name (full name) [Some-State]:HuNan
 Locality Name (eg, city) []:changsha
 Organization Name (eg, company) [Internet Widgits Pty Ltd]:sunsite
 Organizational Unit Name (eg, section) []:jsb
 Common Name (e.g. server FQDN or YOUR name) []:wuhs
 Email Address []:524627027@qq.com
 Please enter the following ‘extra’ attributes
 to be sent with your certificate request
 A challenge password []:123456
 An optional company name []:123456

(base) [root@sun-site tmp]# openssl req \
 -newkey rsa:2048 -nodes -keyout s.key \
 -out s.csr
 Generating a RSA private key
 …+++++
 .+++++
 writing new private key to ‘s.key’
 -----
 You are about to be asked to enter information that will be incorporated
 into your certificate request.
 What you are about to enter is what is called a Distinguished Name or a DN.
 There are quite a few fields but you can leave some blank
 For some fields there will be a default value,
 If you enter ‘.’, the field will be left blank.
 -----
 Country Name (2 letter code) [AU]:cn
 State or Province Name (full name) [Some-State]:hunan
 Locality Name (eg, city) []:changsha
 Organization Name (eg, company) [Internet Widgits Pty Ltd]:sunsite
 Organizational Unit Name (eg, section) []:jsb
 Common Name (e.g. server FQDN or YOUR name) []:wuhs
 Email Address []:524627027@qq.com
 Please enter the following ‘extra’ attributes
 to be sent with your certificate request
 A challenge password []:123456
 An optional company name []:123456
 (base) [root@sun-site tmp]# ll
 total 28
 -rw-r–r-- 1 root root 1102 Oct 25 15:37 s.csr
 -rw------- 1 root root 1708 Oct 25 15:37 s.key

openssl x509 \
 -in domain.crt \
 -signkey domain.key 
 -x509toreq -out domain.csr

(base) [root@sun-site tmp]# openssl req -text -noout -verify -in sunsite.csr

(base) [root@sun-site tmp]# openssl req \
 -newkey rsa:2048 -nodes -keyout sunsite.key \
 -x509 -days 365 -out sunsite.crt
 Generating a RSA private key
 …+++++
 …+++++
 writing new private key to ‘sunsite.key’
 -----
 You are about to be asked to enter information that will be incorporated
 into your certificate request.
 What you are about to enter is what is called a Distinguished Name or a DN.
 There are quite a few fields but you can leave some blank
 For some fields there will be a default value,
 If you enter ‘.’, the field will be left blank.
 -----
 Country Name (2 letter code) [AU]:cn
 State or Province Name (full name) [Some-State]:hn
 Locality Name (eg, city) []:cs
 Organization Name (eg, company) [Internet Widgits Pty Ltd]:sunsite
 Organizational Unit Name (eg, section) []:jsb
 Common Name (e.g. server FQDN or YOUR name) []:wuhs
 Email Address []:524627027@qq.com
 (base) [root@sun-site tmp]# ll
 -rw-r–r-- 1 root root 1383 Oct 25 16:03 sunsite.crt
 -rw-r–r-- 1 root root 1102 Oct 25 15:05 sunsite.csr
 -rw------- 1 root root 1708 Oct 25 16:03 sunsite.key

(base) [root@sun-site tmp]# openssl req \
 -key sunsite.key -new \
 -x509 -days 365 -out sunsite.crt
 You are about to be asked to enter information that will be incorporated
 into your certificate request.
 What you are about to enter is what is called a Distinguished Name or a DN.
 There are quite a few fields but you can leave some blank
 For some fields there will be a default value,
 If you enter ‘.’, the field will be left blank.
 -----
 Country Name (2 letter code) [AU]:cn
 State or Province Name (full name) [Some-State]:hn
 Locality Name (eg, city) []:cs
 Organization Name (eg, company) [Internet Widgits Pty Ltd]:sunsite
 Organizational Unit Name (eg, section) []:jsb
 Common Name (e.g. server FQDN or YOUR name) []:wuhs
 Email Address []:wuhs@qq.com

(base) [root@sun-site tmp]# openssl x509 \
 -signkey sunsite.key \
 -in sunsite.csr \
 -req -days 365 -out sunsite.crt
 Signature ok
 subject=C = CN, ST = HuNan, L = changsha, O = sunsite, OU = jsb, CN = wuhs, emailAddress = 524627027@qq.com
 Getting Private key

(base) [root@sun-site tmp]# openssl verify -verbose -CAfile ca.crt sunsite.crt
 Error loading file ca.crt
 #需要ca证书

(base) [root@sun-site tmp]# openssl x509 -noout -modulus -in sunsite.crt |openssl md5
 (stdin)= e26905e973af69aed4e4d707f882de61
 (base) [root@sun-site tmp]# openssl rsa -noout -modulus -in sunsite.key |openssl md5
 (stdin)= e26905e973af69aed4e4d707f882de61
 (base) [root@sun-site tmp]# openssl req -noout -modulus -in sunsite.csr |openssl md5
 (stdin)= e26905e973af69aed4e4d707f882de61
 #md5校验和一致说明，三者匹配

(base) [root@sun-site tmp]# openssl x509 -in sunsite.crt -outform der -out sunsite.der

(base) [root@sun-site tmp]# openssl x509 -in sunsite.der -inform der -out sunsite.crt

(base) [root@sun-site tmp]# openssl crl2pkcs7 -nocrl -certfile sunsite.crt -certfile ca-chain.crt -out sunsite.p7b

#openssl pkcs7 -in domain.p7b -print_certs -out domain.crt

openssl pkcs12 -inkey domain.key -in domain.crt -export -out domain.pfx

openssl pkcs12 -in domain.pfx -nodes -out domain.combined.crt

(base) [root@sun-site tmp]# openssl x509 -in sunsite.crt -noout -serial -subject
 serial=2DA086B4B14ECE63535734049A4BCF70290446C9
 subject=C = CN, ST = HuNan, L = changsha, O = sunsite, OU = jsb, CN = wuhs, emailAddress = 524627027@qq.com

openssl command [ command_opts ] [ command_args ]