/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _COMMON_CRYPTO_MODES_H #define _COMMON_CRYPTO_MODES_H #ifdef __cplusplus extern "C" { #endif #include #include #include #include #include #include #include #include #include #define ECB_MODE 0x00000002 #define CBC_MODE 0x00000004 #define CTR_MODE 0x00000008 #define CCM_MODE 0x00000010 #define GCM_MODE 0x00000020 /* * cc_keysched: Pointer to key schedule. * * cc_keysched_len: Length of the key schedule. * * cc_remainder: This is for residual data, i.e. data that can't * be processed because there are too few bytes. * Must wait until more data arrives. * * cc_remainder_len: Number of bytes in cc_remainder. * * cc_iv: Scratch buffer that sometimes contains the IV. * * cc_lastp: Pointer to previous block of ciphertext. * * cc_copy_to: Pointer to where encrypted residual data needs * to be copied. * * cc_flags: PROVIDER_OWNS_KEY_SCHEDULE * When a context is freed, it is necessary * to know whether the key schedule was allocated * by the caller, or internally, e.g. an init routine. * If allocated by the latter, then it needs to be freed. * * ECB_MODE, CBC_MODE, CTR_MODE, or CCM_MODE */ struct common_ctx { void *cc_keysched; size_t cc_keysched_len; uint64_t cc_iv[2]; uint64_t cc_remainder[2]; size_t cc_remainder_len; uint8_t *cc_lastp; uint8_t *cc_copy_to; uint32_t cc_flags; }; typedef struct common_ctx common_ctx_t; typedef struct ecb_ctx { struct common_ctx ecb_common; uint64_t ecb_lastblock[2]; } ecb_ctx_t; #define ecb_keysched ecb_common.cc_keysched #define ecb_keysched_len ecb_common.cc_keysched_len #define ecb_iv ecb_common.cc_iv #define ecb_remainder ecb_common.cc_remainder #define ecb_remainder_len ecb_common.cc_remainder_len #define ecb_lastp ecb_common.cc_lastp #define ecb_copy_to ecb_common.cc_copy_to #define ecb_flags ecb_common.cc_flags typedef struct cbc_ctx { struct common_ctx cbc_common; uint64_t cbc_lastblock[2]; } cbc_ctx_t; #define cbc_keysched cbc_common.cc_keysched #define cbc_keysched_len cbc_common.cc_keysched_len #define cbc_iv cbc_common.cc_iv #define cbc_remainder cbc_common.cc_remainder #define cbc_remainder_len cbc_common.cc_remainder_len #define cbc_lastp cbc_common.cc_lastp #define cbc_copy_to cbc_common.cc_copy_to #define cbc_flags cbc_common.cc_flags /* * ctr_lower_mask Bit-mask for lower 8 bytes of counter block. * ctr_upper_mask Bit-mask for upper 8 bytes of counter block. */ typedef struct ctr_ctx { struct common_ctx ctr_common; uint64_t ctr_lower_mask; uint64_t ctr_upper_mask; uint32_t ctr_tmp[4]; } ctr_ctx_t; /* * ctr_cb Counter block. */ #define ctr_keysched ctr_common.cc_keysched #define ctr_keysched_len ctr_common.cc_keysched_len #define ctr_cb ctr_common.cc_iv #define ctr_remainder ctr_common.cc_remainder #define ctr_remainder_len ctr_common.cc_remainder_len #define ctr_lastp ctr_common.cc_lastp #define ctr_copy_to ctr_common.cc_copy_to #define ctr_flags ctr_common.cc_flags /* * * ccm_mac_len: Stores length of the MAC in CCM mode. * ccm_mac_buf: Stores the intermediate value for MAC in CCM encrypt. * In CCM decrypt, stores the input MAC value. * ccm_data_len: Length of the plaintext for CCM mode encrypt, or * length of the ciphertext for CCM mode decrypt. * ccm_processed_data_len: * Length of processed plaintext in CCM mode encrypt, * or length of processed ciphertext for CCM mode decrypt. * ccm_processed_mac_len: * Length of MAC data accumulated in CCM mode decrypt. * * ccm_pt_buf: Only used in CCM mode decrypt. It stores the * decrypted plaintext to be returned when * MAC verification succeeds in decrypt_final. * Memory for this should be allocated in the AES module. * */ typedef struct ccm_ctx { struct common_ctx ccm_common; uint32_t ccm_tmp[4]; size_t ccm_mac_len; uint64_t ccm_mac_buf[2]; size_t ccm_data_len; size_t ccm_processed_data_len; size_t ccm_processed_mac_len; uint8_t *ccm_pt_buf; uint64_t ccm_mac_input_buf[2]; uint64_t ccm_counter_mask; } ccm_ctx_t; #define ccm_keysched ccm_common.cc_keysched #define ccm_keysched_len ccm_common.cc_keysched_len #define ccm_cb ccm_common.cc_iv #define ccm_remainder ccm_common.cc_remainder #define ccm_remainder_len ccm_common.cc_remainder_len #define ccm_lastp ccm_common.cc_lastp #define ccm_copy_to ccm_common.cc_copy_to #define ccm_flags ccm_common.cc_flags /* * gcm_tag_len: Length of authentication tag. * * gcm_ghash: Stores output from the GHASH function. * * gcm_processed_data_len: * Length of processed plaintext (encrypt) or * length of processed ciphertext (decrypt). * * gcm_pt_buf: Stores the decrypted plaintext returned by * decrypt_final when the computed authentication * tag matches the user supplied tag. * * gcm_pt_buf_len: Length of the plaintext buffer. * * gcm_H: Subkey. * * gcm_J0: Pre-counter block generated from the IV. * * gcm_len_a_len_c: 64-bit representations of the bit lengths of * AAD and ciphertext. * * gcm_kmflag: Current value of kmflag. Used only for allocating * the plaintext buffer during decryption. */ typedef struct gcm_ctx { struct common_ctx gcm_common; size_t gcm_tag_len; size_t gcm_processed_data_len; size_t gcm_pt_buf_len; uint32_t gcm_tmp[4]; uint64_t gcm_ghash[2]; uint64_t gcm_H[2]; uint64_t gcm_J0[2]; uint64_t gcm_len_a_len_c[2]; uint8_t *gcm_pt_buf; int gcm_kmflag; } gcm_ctx_t; #define gcm_keysched gcm_common.cc_keysched #define gcm_keysched_len gcm_common.cc_keysched_len #define gcm_cb gcm_common.cc_iv #define gcm_remainder gcm_common.cc_remainder #define gcm_remainder_len gcm_common.cc_remainder_len #define gcm_lastp gcm_common.cc_lastp #define gcm_copy_to gcm_common.cc_copy_to #define gcm_flags gcm_common.cc_flags typedef struct aes_ctx { union { ecb_ctx_t acu_ecb; cbc_ctx_t acu_cbc; ctr_ctx_t acu_ctr; #ifdef _KERNEL ccm_ctx_t acu_ccm; gcm_ctx_t acu_gcm; #endif } acu; } aes_ctx_t; #define ac_flags acu.acu_ecb.ecb_common.cc_flags #define ac_remainder_len acu.acu_ecb.ecb_common.cc_remainder_len #define ac_keysched acu.acu_ecb.ecb_common.cc_keysched #define ac_keysched_len acu.acu_ecb.ecb_common.cc_keysched_len #define ac_iv acu.acu_ecb.ecb_common.cc_iv #define ac_lastp acu.acu_ecb.ecb_common.cc_lastp #define ac_pt_buf acu.acu_ccm.ccm_pt_buf #define ac_mac_len acu.acu_ccm.ccm_mac_len #define ac_data_len acu.acu_ccm.ccm_data_len #define ac_processed_mac_len acu.acu_ccm.ccm_processed_mac_len #define ac_processed_data_len acu.acu_ccm.ccm_processed_data_len #define ac_tag_len acu.acu_gcm.gcm_tag_len typedef struct blowfish_ctx { union { ecb_ctx_t bcu_ecb; cbc_ctx_t bcu_cbc; } bcu; } blowfish_ctx_t; #define bc_flags bcu.bcu_ecb.ecb_common.cc_flags #define bc_remainder_len bcu.bcu_ecb.ecb_common.cc_remainder_len #define bc_keysched bcu.bcu_ecb.ecb_common.cc_keysched #define bc_keysched_len bcu.bcu_ecb.ecb_common.cc_keysched_len #define bc_iv bcu.bcu_ecb.ecb_common.cc_iv #define bc_lastp bcu.bcu_ecb.ecb_common.cc_lastp typedef struct des_ctx { union { ecb_ctx_t dcu_ecb; cbc_ctx_t dcu_cbc; } dcu; } des_ctx_t; #define dc_flags dcu.dcu_ecb.ecb_common.cc_flags #define dc_remainder_len dcu.dcu_ecb.ecb_common.cc_remainder_len #define dc_keysched dcu.dcu_ecb.ecb_common.cc_keysched #define dc_keysched_len dcu.dcu_ecb.ecb_common.cc_keysched_len #define dc_iv dcu.dcu_ecb.ecb_common.cc_iv #define dc_lastp dcu.dcu_ecb.ecb_common.cc_lastp extern int ecb_cipher_contiguous_blocks(ecb_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*cipher)(const void *, const uint8_t *, uint8_t *)); extern int cbc_encrypt_contiguous_blocks(cbc_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*encrypt)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int cbc_decrypt_contiguous_blocks(cbc_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*decrypt)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int ctr_mode_contiguous_blocks(ctr_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*cipher)(const void *, const uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int ccm_mode_encrypt_contiguous_blocks(ccm_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int ccm_mode_decrypt_contiguous_blocks(ccm_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int gcm_mode_encrypt_contiguous_blocks(gcm_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int gcm_mode_decrypt_contiguous_blocks(gcm_ctx_t *, char *, size_t, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); int ccm_encrypt_final(ccm_ctx_t *, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); int gcm_encrypt_final(gcm_ctx_t *, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int ccm_decrypt_final(ccm_ctx_t *, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int gcm_decrypt_final(gcm_ctx_t *, crypto_data_t *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int ctr_mode_final(ctr_ctx_t *, crypto_data_t *, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *)); extern int cbc_init_ctx(cbc_ctx_t *, char *, size_t, size_t, void (*copy_block)(uint8_t *, uint64_t *)); extern int ctr_init_ctx(ctr_ctx_t *, ulong_t, uint8_t *, void (*copy_block)(uint8_t *, uint8_t *)); extern int ccm_init_ctx(ccm_ctx_t *, char *, int, boolean_t, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern int gcm_init_ctx(gcm_ctx_t *, char *, size_t, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *), void (*copy_block)(uint8_t *, uint8_t *), void (*xor_block)(uint8_t *, uint8_t *)); extern void calculate_ccm_mac(ccm_ctx_t *, uint8_t *, int (*encrypt_block)(const void *, const uint8_t *, uint8_t *)); extern void crypto_init_ptrs(crypto_data_t *, void **, offset_t *); extern void crypto_get_ptrs(crypto_data_t *, void **, offset_t *, uint8_t **, size_t *, uint8_t **, size_t); extern void *ecb_alloc_ctx(int); extern void *cbc_alloc_ctx(int); extern void *ctr_alloc_ctx(int); extern void *ccm_alloc_ctx(int); extern void *gcm_alloc_ctx(int); extern void crypto_free_mode_ctx(void *); extern void gcm_set_kmflag(gcm_ctx_t *, int); #ifdef __cplusplus } #endif #endif /* _COMMON_CRYPTO_MODES_H */