diff options
| author | Michael Brown <mcb30@ipxe.org> | 2012-03-20 23:54:16 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2012-03-22 11:41:23 +0000 |
| commit | bdb69d587e79219d7dca6f9aa21f8dd3f05adcac (patch) | |
| tree | 24cab7c74fd7429998c14b0ccb01a0888b10265f /src/include | |
| parent | fe6e741c62e11655018996b5d281eaeb1af796c1 (diff) | |
| download | ipxe-bdb69d587e79219d7dca6f9aa21f8dd3f05adcac.tar.gz | |
[crypto] Add support for Cryptographic Message Syntax (PKCS #7)
The Cryptographic Message Syntax (PKCS#7) provides a format for
encapsulating digital signatures of arbitrary binary blobs. A
signature can be generated using
openssl cms -sign -in <file to sign> -binary -noattr \
-signer <signer>.crt -inkey <signer>.key -certfile <CA>.crt \
-outform DER -out <signature>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/ipxe/asn1.h | 6 | ||||
| -rw-r--r-- | src/include/ipxe/cms.h | 50 | ||||
| -rw-r--r-- | src/include/ipxe/errfile.h | 1 |
3 files changed, 57 insertions, 0 deletions
diff --git a/src/include/ipxe/asn1.h b/src/include/ipxe/asn1.h index 393d5dc34..d83308a2e 100644 --- a/src/include/ipxe/asn1.h +++ b/src/include/ipxe/asn1.h @@ -152,6 +152,12 @@ struct asn1_cursor { ASN1_OID_SINGLE ( 5 ), ASN1_OID_SINGLE ( 7 ), \ ASN1_OID_SINGLE ( 3 ), ASN1_OID_SINGLE ( 3 ) +/** ASN.1 OID for pkcs-signedData (1.2.840.113549.1.7.2) */ +#define ASN1_OID_SIGNEDDATA \ + ASN1_OID_INITIAL ( 1, 2 ), ASN1_OID_DOUBLE ( 840 ), \ + ASN1_OID_TRIPLE ( 113549 ), ASN1_OID_SINGLE ( 1 ), \ + ASN1_OID_SINGLE ( 7 ), ASN1_OID_SINGLE ( 2 ) + /** Define an ASN.1 cursor containing an OID */ #define ASN1_OID_CURSOR( oid_value ) { \ .data = oid_value, \ diff --git a/src/include/ipxe/cms.h b/src/include/ipxe/cms.h new file mode 100644 index 000000000..f355bf1cb --- /dev/null +++ b/src/include/ipxe/cms.h @@ -0,0 +1,50 @@ +#ifndef _IPXE_CMS_H +#define _IPXE_CMS_H + +/** @file + * + * Cryptographic Message Syntax (PKCS #7) + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <time.h> +#include <ipxe/asn1.h> +#include <ipxe/crypto.h> +#include <ipxe/x509.h> +#include <ipxe/uaccess.h> + +/** CMS signer information */ +struct cms_signer_info { + /** Issuer name */ + struct asn1_cursor issuer; + /** Serial number */ + struct asn1_cursor serial; + /** Digest algorithm */ + struct digest_algorithm *digest; + /** Public-key algorithm */ + struct pubkey_algorithm *pubkey; + /** Signature */ + const void *signature; + /** Length of signature */ + size_t signature_len; +}; + +/** A CMS signature */ +struct cms_signature { + /** Raw certificate list */ + struct asn1_cursor certificates; + /** Signer information + * + * We currently use only the first signer information block. + */ + struct cms_signer_info info; +}; + +extern int cms_parse ( struct cms_signature *sig, const void *data, + size_t len ); +extern int cms_verify ( struct cms_signature *sig, userptr_t data, size_t len, + const char *name, time_t time, struct x509_root *root ); + +#endif /* _IPXE_CMS_H */ diff --git a/src/include/ipxe/errfile.h b/src/include/ipxe/errfile.h index 4b568840d..e0473a171 100644 --- a/src/include/ipxe/errfile.h +++ b/src/include/ipxe/errfile.h @@ -249,6 +249,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); #define ERRFILE_rsa ( ERRFILE_OTHER | 0x00270000 ) #define ERRFILE_linux_entropy ( ERRFILE_OTHER | 0x00280000 ) #define ERRFILE_x509_test ( ERRFILE_OTHER | 0x00290000 ) +#define ERRFILE_cms ( ERRFILE_OTHER | 0x002a0000 ) /** @} */ |