summaryrefslogtreecommitdiff
path: root/protocols/MSN/src/des.h
diff options
context:
space:
mode:
authorKirill Volinsky <mataes2007@gmail.com>2012-10-13 09:07:09 +0000
committerKirill Volinsky <mataes2007@gmail.com>2012-10-13 09:07:09 +0000
commit6860b3202f3c8218288fad2778529ba76463015c (patch)
treebed312a64412639bcb691fb513efea4a28db04c8 /protocols/MSN/src/des.h
parentde6eb3e4bc30eff928dc932c03812ede3077926a (diff)
MSN: folders restructurization
git-svn-id: http://svn.miranda-ng.org/main/trunk@1901 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'protocols/MSN/src/des.h')
-rw-r--r--protocols/MSN/src/des.h170
1 files changed, 170 insertions, 0 deletions
diff --git a/protocols/MSN/src/des.h b/protocols/MSN/src/des.h
new file mode 100644
index 0000000000..e1fc923fad
--- /dev/null
+++ b/protocols/MSN/src/des.h
@@ -0,0 +1,170 @@
+/**
+ * \file des.h
+ */
+#ifndef _DES_H
+#define _DES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief DES context structure
+ */
+typedef struct
+{
+ unsigned long esk[32]; /*!< DES encryption subkeys */
+ unsigned long dsk[32]; /*!< DES decryption subkeys */
+}
+des_context;
+
+/**
+ * \brief Triple-DES context structure
+ */
+typedef struct
+{
+ unsigned long esk[96]; /*!< Triple-DES encryption subkeys */
+ unsigned long dsk[96]; /*!< Triple-DES decryption subkeys */
+}
+des3_context;
+
+/**
+ * \brief DES key schedule (56-bit)
+ *
+ * \param ctx DES context to be initialized
+ * \param key 8-byte secret key
+ */
+void des_set_key( des_context *ctx, unsigned char key[8] );
+
+/**
+ * \brief DES block encryption (ECB mode)
+ *
+ * \param ctx DES context
+ * \param input plaintext block
+ * \param output ciphertext block
+ */
+void des_encrypt( des_context *ctx,
+ unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief DES block decryption (ECB mode)
+ *
+ * \param ctx DES context
+ * \param input ciphertext block
+ * \param output plaintext block
+ */
+void des_decrypt( des_context *ctx,
+ unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief DES-CBC buffer encryption
+ *
+ * \param ctx DES context
+ * \param iv initialization vector (modified after use)
+ * \param input buffer holding the plaintext
+ * \param output buffer holding the ciphertext
+ * \param len length of the data to be encrypted
+ */
+void des_cbc_encrypt( des_context *ctx,
+ unsigned char iv[8],
+ unsigned char *input,
+ unsigned char *output,
+ int len );
+
+/**
+ * \brief DES-CBC buffer decryption
+ *
+ * \param ctx DES context
+ * \param iv initialization vector (modified after use)
+ * \param input buffer holding the ciphertext
+ * \param output buffer holding the plaintext
+ * \param len length of the data to be decrypted
+ */
+void des_cbc_decrypt( des_context *ctx,
+ unsigned char iv[8],
+ unsigned char *input,
+ unsigned char *output,
+ int len );
+
+/**
+ * \brief Triple-DES key schedule (112-bit)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 16-byte secret key
+ */
+void des3_set_2keys( des3_context *ctx, unsigned char key[16] );
+
+/**
+ * \brief Triple-DES key schedule (168-bit)
+ *
+ * \param ctx 3DES context to be initialized
+ * \param key 24-byte secret key
+ */
+void des3_set_3keys( des3_context *ctx, unsigned char key[24] );
+
+/**
+ * \brief Triple-DES block encryption (ECB mode)
+ *
+ * \param ctx 3DES context
+ * \param input plaintext block
+ * \param output ciphertext block
+ */
+void des3_encrypt( des3_context *ctx,
+ unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief Triple-DES block decryption (ECB mode)
+ *
+ * \param ctx 3DES context
+ * \param input ciphertext block
+ * \param output plaintext block
+ */
+void des3_decrypt( des3_context *ctx,
+ unsigned char input[8],
+ unsigned char output[8] );
+
+/**
+ * \brief 3DES-CBC buffer encryption
+ *
+ * \param ctx 3DES context
+ * \param iv initialization vector (modified after use)
+ * \param input buffer holding the plaintext
+ * \param output buffer holding the ciphertext
+ * \param len length of the data to be encrypted
+ */
+void des3_cbc_encrypt( des3_context *ctx,
+ unsigned char iv[8],
+ unsigned char *input,
+ unsigned char *output,
+ int len );
+
+/**
+ * \brief 3DES-CBC buffer decryption
+ *
+ * \param ctx 3DES context
+ * \param iv initialization vector (modified after use)
+ * \param input buffer holding the ciphertext
+ * \param output buffer holding the plaintext
+ * \param len length of the data to be decrypted
+ */
+void des3_cbc_decrypt( des3_context *ctx,
+ unsigned char iv[8],
+ unsigned char *input,
+ unsigned char *output,
+ int len );
+
+/*
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int des_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* des.h */