/crypto/objects/objects.txt 格式 举例说明

Is there anyone who can tell me what do this line mean (they belongs to
/crypto/objects/objects.txt) ?
line 659 !Alias csor 2 16 840 1 101 3
line 660 !Alias nistAlgorithms csor 4
line 661 !Alias aes nistAlgorithms 1
In particular, for what stands the number 4 in line 660?

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Its just an additional part of the OID. So:

csor is 2.16.840.1.101.3
nistAlgorithms is 2.16.840.1.101.3.4
aes is 2.16.840.1.101.3.4.1

原文链接：http://openssl-dev.openssl.narkive.com/HWJnEN1z/what-does-is-it

openssl、SSL/TLS学习过程中非常棒的参考书：http://download.csdn.net/detail/xiangguiwang/9642295