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* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
#ifndef _CRYPTO_LRW_H
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#define _CRYPTO_LRW_H
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#include <crypto/b128ops.h>
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struct scatterlist;
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struct gf128mul_64k;
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struct blkcipher_desc;
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#define LRW_BLOCK_SIZE 16
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struct lrw_table_ctx {
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/* optimizes multiplying a random (non incrementing, as at the
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* start of a new sector) value with key2, we could also have
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* used 4k optimization tables or no optimization at all. In the
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* latter case we would have to store key2 here */
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struct gf128mul_64k *table;
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/* stores:
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* key2*{ 0,0,...0,0,0,0,1 }, key2*{ 0,0,...0,0,0,1,1 },
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* key2*{ 0,0,...0,0,1,1,1 }, key2*{ 0,0,...0,1,1,1,1 }
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* key2*{ 0,0,...1,1,1,1,1 }, etc
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* needed for optimized multiplication of incrementing values
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* with key2 */
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be128 mulinc[128];
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};
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int lrw_init_table(struct lrw_table_ctx *ctx, const u8 *tweak);
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void lrw_free_table(struct lrw_table_ctx *ctx);
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struct lrw_crypt_req {
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be128 *tbuf;
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unsigned int tbuflen;
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struct lrw_table_ctx *table_ctx;
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void *crypt_ctx;
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void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
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};
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int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
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struct scatterlist *src, unsigned int nbytes,
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struct lrw_crypt_req *req);
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#endif /* _CRYPTO_LRW_H */
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