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| author | David Howells <dhowells@redhat.com> | 2015-07-20 21:16:26 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2015-08-07 16:26:13 +0100 |
| commit | 4ebdb76f7da662346267384440492bb9d87c2aa3 (patch) | |
| tree | 53b863a630359237fc6dfdfc051a2aebbac5f7d1 /include/crypto | |
| parent | 4573b64a31cd8cb4cfeb1d1b95536cfe71980cf4 (diff) | |
| download | linux-4ebdb76f7da662346267384440492bb9d87c2aa3.tar.bz2 | |
PKCS#7: Allow detached data to be supplied for signature checking purposes
It is possible for a PKCS#7 message to have detached data. However, to verify
the signatures on a PKCS#7 message, we have to be able to digest the data.
Provide a function to supply that data. An error is given if the PKCS#7
message included embedded data.
This is used in a subsequent patch to supply the data to module signing where
the signature is in the form of a PKCS#7 message with detached data, whereby
the detached data is the module content that is signed.
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Vivek Goyal <vgoyal@redhat.com>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/pkcs7.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/crypto/pkcs7.h b/include/crypto/pkcs7.h index 691c79172a26..e235ab4957ee 100644 --- a/include/crypto/pkcs7.h +++ b/include/crypto/pkcs7.h @@ -34,3 +34,6 @@ extern int pkcs7_validate_trust(struct pkcs7_message *pkcs7, * pkcs7_verify.c */ extern int pkcs7_verify(struct pkcs7_message *pkcs7); + +extern int pkcs7_supply_detached_data(struct pkcs7_message *pkcs7, + const void *data, size_t datalen); |