e68503bd68
Generalise system_verify_data() to provide access to internal content through a callback. This allows all the PKCS#7 stuff to be hidden inside this function and removed from the PE file parser and the PKCS#7 test key. If external content is not required, NULL should be passed as data to the function. If the callback is not required, that can be set to NULL. The function is now called verify_pkcs7_signature() to contrast with verify_pefile_signature() and the definitions of both have been moved into linux/verification.h along with the key_being_used_for enum. Signed-off-by: David Howells <dhowells@redhat.com>
63 lines
2.1 KiB
Text
63 lines
2.1 KiB
Text
menuconfig ASYMMETRIC_KEY_TYPE
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tristate "Asymmetric (public-key cryptographic) key type"
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depends on KEYS
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help
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This option provides support for a key type that holds the data for
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the asymmetric keys used for public key cryptographic operations such
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as encryption, decryption, signature generation and signature
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verification.
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if ASYMMETRIC_KEY_TYPE
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config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
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tristate "Asymmetric public-key crypto algorithm subtype"
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select MPILIB
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select CRYPTO_HASH_INFO
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help
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This option provides support for asymmetric public key type handling.
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If signature generation and/or verification are to be used,
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appropriate hash algorithms (such as SHA-1) must be available.
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ENOPKG will be reported if the requisite algorithm is unavailable.
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config X509_CERTIFICATE_PARSER
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tristate "X.509 certificate parser"
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depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE
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select ASN1
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select OID_REGISTRY
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help
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This option provides support for parsing X.509 format blobs for key
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data and provides the ability to instantiate a crypto key from a
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public key packet found inside the certificate.
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config PKCS7_MESSAGE_PARSER
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tristate "PKCS#7 message parser"
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depends on X509_CERTIFICATE_PARSER
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select ASN1
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select OID_REGISTRY
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help
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This option provides support for parsing PKCS#7 format messages for
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signature data and provides the ability to verify the signature.
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config PKCS7_TEST_KEY
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tristate "PKCS#7 testing key type"
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depends on SYSTEM_DATA_VERIFICATION
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help
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This option provides a type of key that can be loaded up from a
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PKCS#7 message - provided the message is signed by a trusted key. If
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it is, the PKCS#7 wrapper is discarded and reading the key returns
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just the payload. If it isn't, adding the key will fail with an
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error.
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This is intended for testing the PKCS#7 parser.
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config SIGNED_PE_FILE_VERIFICATION
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bool "Support for PE file signature verification"
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depends on PKCS7_MESSAGE_PARSER=y
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depends on SYSTEM_DATA_VERIFICATION
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select ASN1
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select OID_REGISTRY
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help
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This option provides support for verifying the signature(s) on a
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signed PE binary.
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endif # ASYMMETRIC_KEY_TYPE
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