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-rw-r--r--block-sha1/sha1.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/block-sha1/sha1.h b/block-sha1/sha1.h
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--- /dev/null
+++ b/block-sha1/sha1.h
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+/*
+ * SHA1 routine optimized to do word accesses rather than byte accesses,
+ * and to avoid unnecessary copies into the context array.
+ *
+ * This was initially based on the Mozilla SHA1 implementation, although
+ * none of the original Mozilla code remains.
+ */
+
+typedef struct {
+ unsigned long long size;
+ unsigned int H[5];
+ unsigned int W[16];
+} blk_SHA_CTX;
+
+void blk_SHA1_Init(blk_SHA_CTX *ctx);
+void blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, size_t len);
+void blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
+
+#define platform_SHA_CTX blk_SHA_CTX
+#define platform_SHA1_Init blk_SHA1_Init
+#define platform_SHA1_Update blk_SHA1_Update
+#define platform_SHA1_Final blk_SHA1_Final