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OpenSSL "ans1parse" - RSA Private Key in ASN.1 Structure
How to view the ASN.1 structure of an RSA private key using the OpenSSL "asn1parse" command?
✍: FYIcenter.com
You can use the OpenSSL "asn1parse" command to view the ASN.1 structure
of an RSA private key as shown in the test below:
C:\Users\fyicenter>\local\openssl\openssl genrsa -out rsa_pri.key 512 Generating RSA private key, 512 bit long modulus ........++++++++++++ .++++++++++++ e is 65537 (0x10001) C:\Users\fyicenter>\local\openssl\openssl asn1parse -in rsa_pri.key 0:d=0 hl=4 l= 313 cons: SEQUENCE 4:d=1 hl=2 l= 1 prim: INTEGER :00 7:d=1 hl=2 l= 65 prim: INTEGER :98872AF758AD6325645AA989ED59ABF2 AA4200F6DE59C1D5567A343B8852E32A9EA593559142A0EDD535916D03490EAF324C3E6A 973A7161E5D28E355E5E1E03 74:d=1 hl=2 l= 3 prim: INTEGER :010001 79:d=1 hl=2 l= 64 prim: INTEGER :53D1438D350FE301F349D70CD27F8A7C 098FC7D3E190557214D986C6883D745368308136E08B09ED1A320D3E95C69E95D444BF3A 1D4A7C470A5464DC377C51C1 145:d=1 hl=2 l= 33 prim: INTEGER :C92957B5A21906C2C00F15D9342A71A8 B9F5FD24B470D7C390103E64CDE19153 180:d=1 hl=2 l= 33 prim: INTEGER :C21BCA856858A0B1581DF145DA078980 A80EEB500FB53EAD7C553B9BC2DA3A91 215:d=1 hl=2 l= 32 prim: INTEGER :6542B872281CECF84FF1C80FC460B142 3C0A05D9DA330B89D81535334D28051D 249:d=1 hl=2 l= 32 prim: INTEGER :5FEA5BA890673B00670A64AE9F8E19E3 F927661FA9A365D5541AC9D9ADEF2801 283:d=1 hl=2 l= 32 prim: INTEGER :102295BDF616C7EE47549705CA808BEC 1C53AA5AE38CD0A781E4FE3CDEF6E42C C:\Users\fyicenter>\local\openssl\openssl pkey -in rsa_pri.key -text -noout Private-Key: (512 bit) modulus: 00:98:87:2a:f7:58:ad:63:25:64:5a:a9:89:ed:59: ab:f2:aa:42:00:f6:de:59:c1:d5:56:7a:34:3b:88: 52:e3:2a:9e:a5:93:55:91:42:a0:ed:d5:35:91:6d: 03:49:0e:af:32:4c:3e:6a:97:3a:71:61:e5:d2:8e: 35:5e:5e:1e:03 publicExponent: 65537 (0x10001) privateExponent: 53:d1:43:8d:35:0f:e3:01:f3:49:d7:0c:d2:7f:8a: 7c:09:8f:c7:d3:e1:90:55:72:14:d9:86:c6:88:3d: 74:53:68:30:81:36:e0:8b:09:ed:1a:32:0d:3e:95: c6:9e:95:d4:44:bf:3a:1d:4a:7c:47:0a:54:64:dc: 37:7c:51:c1 prime1: 00:c9:29:57:b5:a2:19:06:c2:c0:0f:15:d9:34:2a: 71:a8:b9:f5:fd:24:b4:70:d7:c3:90:10:3e:64:cd: e1:91:53 prime2: 00:c2:1b:ca:85:68:58:a0:b1:58:1d:f1:45:da:07: 89:80:a8:0e:eb:50:0f:b5:3e:ad:7c:55:3b:9b:c2: da:3a:91 exponent1: 65:42:b8:72:28:1c:ec:f8:4f:f1:c8:0f:c4:60:b1: 42:3c:0a:05:d9:da:33:0b:89:d8:15:35:33:4d:28: 05:1d exponent2: 5f:ea:5b:a8:90:67:3b:00:67:0a:64:ae:9f:8e:19: e3:f9:27:66:1f:a9:a3:65:d5:54:1a:c9:d9:ad:ef: 28:01 coefficient: 10:22:95:bd:f6:16:c7:ee:47:54:97:05:ca:80:8b: ec:1c:53:aa:5a:e3:8c:d0:a7:81:e4:fe:3c:de:f6: e4:2c
Note about the test:
⇒ OpenSSL "ans1parse" - Configuration File for RSA Private Key
2016-09-27, 11647👍, 0💬
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