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Editing: signatures_digests.md

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layout: default
title: rpm.org - Signatures and Digests
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# Signatures and Digests

Table describing signatures and digests which RPM uses to verify package
contents:

|   RPMSIGTAG_   |      RPMTAG_      | Version | Algorithm      | Location |  Range  |
|     :---:      |    :-------:      |  :---:  |  :-----:       |   :--:   | :-----: |
|       MD5      |     SIGMD5        |   3.0   | MD5            |    S     |   HP    |
|       PGP      |     SIGPGP        |   3.0   | OpenPGP/RSA    |    S     |   HP    |      
|       GPG      |     SIGGPG        |   3.0   | OpenPGP/DSA    |    S     |   HP    |
|       SHA1     |   SHA1HEADER      |   4.0   | SHA1           |    S     |   H     |
|       RSA      |    RSAHEADER      |   4.0   | OpenPGP/RSA    |    S     |   H     |
|       DSA      |    DSAHEADER      |   4.0   | OpenPGP/DSA    |    S     |   H     |
|      SHA256    |  SHA256HEADER     |  4.14   | SHA256         |    S     |   H     |
|        -       |  PAYLOADDIGEST    |  4.14   | SHA256 (*)     |    H     |   Pc    |
|        -       |  PAYLOADDIGESTALT |  4.16   | SHA256 (*)     |    H     |   P     |
|        -       |     FILEMD5       |   3.0   | MD5            |    H     |   F     |
|        -       |   FILEDIGESTS     |   4.6   | SHA256 (**)    |    H     |   F     |

* S = Signature header
* H = Main header
* P = Payload
* F = Files in the payload (uncompressed)
* c = compressed content
* (*) = Configurable, defaults to SHA256
* (**) = Configurable, defaults to SHA256 in rpm >= 4.14, MD5 in older

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