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Wrong Serial/BN set when serial = 0 (0x0) #154

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mhijazi1 opened this issue Feb 14, 2018 · 0 comments
Closed

Wrong Serial/BN set when serial = 0 (0x0) #154

mhijazi1 opened this issue Feb 14, 2018 · 0 comments

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@mhijazi1
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mhijazi1 commented Feb 14, 2018 •
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JRuby OpenSSL sets serial = 1 when it should be zero. Note that Jruby OpenSSL still returns the correct pem.

JRuby Version = jruby 9.1.15.0 (2.3.3) 2017-12-07
JRuby-OpenSSL Version = 0.9.21

OpenSSL output:

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 0 (0x0)
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2
        Validity
            Not Before: Sep  1 00:00:00 2009 GMT
            Not After : Dec 31 23:59:59 2037 GMT
        Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
            RSA Public Key: (2048 bit)
                Modulus (2048 bit):
                    00:bd:ed:c1:03:fc:f6:8f:fc:02:b1:6f:5b:9f:48:
                    d9:9d:79:e2:a2:b7:03:61:56:18:c3:47:b6:d7:ca:
                    3d:35:2e:89:43:f7:a1:69:9b:de:8a:1a:fd:13:20:
                    9c:b4:49:77:32:29:56:fd:b9:ec:8c:dd:22:fa:72:
                    dc:27:61:97:ee:f6:5a:84:ec:6e:19:b9:89:2c:dc:
                    84:5b:d5:74:fb:6b:5f:c5:89:a5:10:52:89:46:55:
                    f4:b8:75:1c:e6:7f:e4:54:ae:4b:f8:55:72:57:02:
                    19:f8:17:71:59:eb:1e:28:07:74:c5:9d:48:be:6c:
                    b4:f4:a4:b0:f3:64:37:79:92:c0:ec:46:5e:7f:e1:
                    6d:53:4c:62:af:cd:1f:0b:63:bb:3a:9d:fb:fc:79:
                    00:98:61:74:cf:26:82:40:63:f3:b2:72:6a:19:0d:
                    99:ca:d4:0e:75:cc:37:fb:8b:89:c1:59:f1:62:7f:
                    5f:b3:5f:65:30:f8:a7:b7:4d:76:5a:1e:76:5e:34:
                    c0:e8:96:56:99:8a:b3:f0:7f:a4:cd:bd:dc:32:31:
                    7c:91:cf:e0:5f:11:f8:6b:aa:49:5c:d1:99:94:d1:
                    a2:e3:63:5b:09:76:b5:56:62:e1:4b:74:1d:96:d4:
                    26:d4:08:04:59:d0:98:0e:0e:e6:de:fc:c3:ec:1f:
                    90:f1
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: critical
                CA:TRUE
            X509v3 Key Usage: critical
                Certificate Sign, CRL Sign
            X509v3 Subject Key Identifier: 
                7C:0C:32:1F:A7:D9:30:7F:C4:7D:68:A3:62:A8:A1:CE:AB:07:5B:27
    Signature Algorithm: sha256WithRSAEncryption
        11:59:fa:25:4f:03:6f:94:99:3b:9a:1f:82:85:39:d4:76:05:
        94:5e:e1:28:93:6d:62:5d:09:c2:a0:a8:d4:b0:75:38:f1:34:
        6a:9d:e4:9f:8a:86:26:51:e6:2c:d1:c6:2d:6e:95:20:4a:92:
        01:ec:b8:8a:67:7b:31:e2:67:2e:8c:95:03:26:2e:43:9d:4a:
        31:f6:0e:b5:0c:bb:b7:e2:37:7f:22:ba:00:a3:0e:7b:52:fb:
        6b:bb:3b:c4:d3:79:51:4e:cd:90:f4:67:07:19:c8:3c:46:7a:
        0d:01:7d:c5:58:e7:6d:e6:85:30:17:9a:24:c4:10:e0:04:f7:
        e0:f2:7f:d4:aa:0a:ff:42:1d:37:ed:94:e5:64:59:12:20:77:
        38:d3:32:3e:38:81:75:96:73:fa:68:8f:b1:cb:ce:1f:c5:ec:
        fa:9c:7e:cf:7e:b1:f1:07:2d:b6:fc:bf:ca:a4:bf:d0:97:05:
        4a:bc:ea:18:28:02:90:bd:54:78:09:21:71:d3:d1:7d:1d:d9:
        16:b0:a9:61:3d:d0:0a:00:22:fc:c7:7b:cb:09:64:45:0b:3b:
        40:81:f7:7d:7c:32:f5:98:ca:58:8e:7d:2a:ee:90:59:73:64:
        f9:36:74:5e:25:a1:f5:66:05:2e:7f:39:15:a9:2a:fb:50:8b:
        8e:85:69:f4

Jruby Cert Object:

=> #<OpenSSL::X509::Certificate
 subject=#<OpenSSL::X509::Name CN=Starfield Root Certificate Authority - G2,O=Starfield Technologies, Inc.,L=Scottsdale,ST=Arizona,C=US>,
 issuer=#<OpenSSL::X509::Name CN=Starfield Root Certificate Authority - G2,O=Starfield Technologies, Inc.,L=Scottsdale,ST=Arizona,C=US>,
 serial=#<OpenSSL::BN 1>,
 not_before=2009-09-01 00:00:00 UTC,
 not_after=2037-12-31 23:59:59 UTC>

Pem:

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Additional Testing Results: This doesn't just seem to be when parsing a pem, it actively goes against being changed to 0. For example the following commands work as expected:

cert.serial = 10
cert.serial = cert.serial +5 #assuming serial != -5
cert.serial = cert.serial * -1

But these do not:
cert.serial = 0
cert.serial = OpenSSL::BN.new 0
cert.serial = cert.serial * 0
cert.serial = cert.serial -1 #assuming cert.serial = 1

all of the above result in serial = 1
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