hc
2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390
kernel/include/crypto/des.h
....@@ -6,6 +6,8 @@
66 #ifndef __CRYPTO_DES_H
77 #define __CRYPTO_DES_H
88
9
+#include <linux/types.h>
10
+
911 #define DES_KEY_SIZE 8
1012 #define DES_EXPKEY_WORDS 32
1113 #define DES_BLOCK_SIZE 8
....@@ -14,10 +16,42 @@
1416 #define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
1517 #define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
1618
19
+struct des_ctx {
20
+ u32 expkey[DES_EXPKEY_WORDS];
21
+};
1722
18
-extern unsigned long des_ekey(u32 *pe, const u8 *k);
23
+struct des3_ede_ctx {
24
+ u32 expkey[DES3_EDE_EXPKEY_WORDS];
25
+};
1926
20
-extern int __des3_ede_setkey(u32 *expkey, u32 *flags, const u8 *key,
21
- unsigned int keylen);
27
+void des_encrypt(const struct des_ctx *ctx, u8 *dst, const u8 *src);
28
+void des_decrypt(const struct des_ctx *ctx, u8 *dst, const u8 *src);
29
+
30
+void des3_ede_encrypt(const struct des3_ede_ctx *dctx, u8 *dst, const u8 *src);
31
+void des3_ede_decrypt(const struct des3_ede_ctx *dctx, u8 *dst, const u8 *src);
32
+
33
+/**
34
+ * des_expand_key - Expand a DES input key into a key schedule
35
+ * @ctx: the key schedule
36
+ * @key: buffer containing the input key
37
+ * @len: size of the buffer contents
38
+ *
39
+ * Returns 0 on success, -EINVAL if the input key is rejected and -ENOKEY if
40
+ * the key is accepted but has been found to be weak.
41
+ */
42
+int des_expand_key(struct des_ctx *ctx, const u8 *key, unsigned int keylen);
43
+
44
+/**
45
+ * des3_ede_expand_key - Expand a triple DES input key into a key schedule
46
+ * @ctx: the key schedule
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+ * @key: buffer containing the input key
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+ * @len: size of the buffer contents
49
+ *
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+ * Returns 0 on success, -EINVAL if the input key is rejected and -ENOKEY if
51
+ * the key is accepted but has been found to be weak. Note that weak keys will
52
+ * be rejected (and -EINVAL will be returned) when running in FIPS mode.
53
+ */
54
+int des3_ede_expand_key(struct des3_ede_ctx *ctx, const u8 *key,
55
+ unsigned int keylen);
2256
2357 #endif /* __CRYPTO_DES_H */