当我下载GCC时,它还有一个 .sig 文件,我认为它是用来验证下载的文件。 (我从此处下载了GCC)。
When I download GCC, it also has a .sig file, and I think it is provided to verify downloaded file. (I downloaded GCC from here).
但我不知道如何使用它。我试过 gpg ,但它抱怨公钥。
But I can't figure out how should I use it. I tried gpg, but it complains about public key.
[root@localhost src]# gpg --verify gcc-4.7.2.tar.gz.sig gcc-4.7.2.tar.gz gpg: Signature made Thu 20 Sep 2012 07:30:44 PM KST using DSA key ID C3C45C06 gpg: Can't check signature: No public key [root@localhost src]#如何使用 .sig 文件验证下载的文件?
How can I verify downloaded file with .sig file?
推荐答案您需要导入公钥: C3C45C06
可以分三步完成。
1)查找公钥ID:
$ gpg gcc-4.7.2.tar.gz.sig gpg: Signature made Čt 20. září 2012, 12:30:44 CEST using DSA key ID C3C45C06 gpg: Can't check signature: No public key2)从密钥服务器导入公钥。通常不需要选择密钥服务器,但可以通过 - keyserver< server> 来完成。 密钥服务器示例
2) import the public key from key server. It's usually not needed to choose key server, but it can be done with --keyserver <server>. Keyserver examples.
$ gpg --recv-key C3C45C06 gpg: requesting key C3C45C06 from hkp server keys.gnupg gpg: key C3C45C06: public key "Jakub Jelinek <jakub@redhat>" imported gpg: no ultimately trusted keys found gpg: Total number processed: 1 gpg: imported: 13)验证签名:
$ gpg gcc-4.7.2.tar.gz.sig gpg: Signature made Čt 20. září 2012, 12:30:44 CEST using DSA key ID C3C45C06 gpg: Good signature from "Jakub Jelinek <jakub@redhat>" [unknown] gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. Primary key fingerprint: 33C2 35A3 4C46 AA3F FB29 3709 A328 C3A2 C3C4 5C06说好签名。
gpg:警告:此密钥未通过可信签名!
gpg: WARNING: This key is not certified with a trusted signature!
是另一个问题;)
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如何验证下载的文件与.sig文件?
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