| #ifndef _IPXE_MD4_H |
| #define _IPXE_MD4_H |
| |
| /** @file |
| * |
| * MD4 algorithm |
| * |
| */ |
| |
| FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); |
| |
| #include <stdint.h> |
| #include <ipxe/crypto.h> |
| |
| /** An MD4 digest */ |
| struct md4_digest { |
| /** Hash output */ |
| uint32_t h[4]; |
| }; |
| |
| /** An MD4 data block */ |
| union md4_block { |
| /** Raw bytes */ |
| uint8_t byte[64]; |
| /** Raw dwords */ |
| uint32_t dword[16]; |
| /** Final block structure */ |
| struct { |
| /** Padding */ |
| uint8_t pad[56]; |
| /** Length in bits */ |
| uint64_t len; |
| } final; |
| }; |
| |
| /** MD4 digest and data block |
| * |
| * The order of fields within this structure is designed to minimise |
| * code size. |
| */ |
| struct md4_digest_data { |
| /** Digest of data already processed */ |
| struct md4_digest digest; |
| /** Accumulated data */ |
| union md4_block data; |
| } __attribute__ (( packed )); |
| |
| /** MD4 digest and data block */ |
| union md4_digest_data_dwords { |
| /** Digest and data block */ |
| struct md4_digest_data dd; |
| /** Raw dwords */ |
| uint32_t dword[ sizeof ( struct md4_digest_data ) / |
| sizeof ( uint32_t ) ]; |
| }; |
| |
| /** An MD4 context */ |
| struct md4_context { |
| /** Amount of accumulated data */ |
| size_t len; |
| /** Digest and accumulated data */ |
| union md4_digest_data_dwords ddd; |
| } __attribute__ (( packed )); |
| |
| /** MD4 context size */ |
| #define MD4_CTX_SIZE sizeof ( struct md4_context ) |
| |
| /** MD4 digest size */ |
| #define MD4_DIGEST_SIZE sizeof ( struct md4_digest ) |
| |
| extern struct digest_algorithm md4_algorithm; |
| |
| #endif /* _IPXE_MD4_H */ |