35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
// Minimal BLAKE3 device implementation for RinHash
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// Simplified to avoid complex dependencies
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#include <stdint.h>
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// Simple BLAKE3 hash implementation for GPU
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__device__ void light_hash_device(const uint8_t* input, size_t input_len, uint8_t* output) {
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// Simple hash implementation - can be replaced with full BLAKE3 later
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// For now, use a basic hash function that produces consistent output
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uint32_t hash = 0x6A09E667; // BLAKE3 IV[0]
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// Process input in 4-byte chunks
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for (size_t i = 0; i < input_len; i++) {
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hash ^= input[i];
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hash = (hash << 7) | (hash >> 25); // Rotate left by 7
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hash += 0x9B05688C; // BLAKE3 IV[5]
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}
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// Convert to bytes (little-endian)
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output[0] = (uint8_t)hash;
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output[1] = (uint8_t)(hash >> 8);
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output[2] = (uint8_t)(hash >> 16);
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output[3] = (uint8_t)(hash >> 24);
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// Fill remaining bytes with a pattern
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for (int i = 4; i < 32; i++) {
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output[i] = (uint8_t)(hash + i);
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}
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}
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// Alias for compatibility
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__device__ void blake3_hash_device(const uint8_t* input, size_t input_len, uint8_t* output) {
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light_hash_device(input, input_len, output);
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} |