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@ -0,0 +1,416 @@ |
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require "openssl" |
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require "benchmark" |
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require "digest" |
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require "big" |
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def to_hex(decimal) |
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decimal_remainder = decimal % 16 |
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hexchars = "0123456789abcdef" |
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div = decimal / 16 |
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if div == 0 |
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hexchars[decimal_remainder].to_s |
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else |
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to_hex(div) + hexchars[decimal_remainder].to_s |
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end |
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end |
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class CRC |
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# The initial value of the CRC checksum |
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INIT_CRC = 0x00 |
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# The XOR mask to apply to the resulting CRC checksum |
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XOR_MASK = 0x00 |
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# The bit width of the CRC checksum |
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WIDTH = 0 |
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# Default place holder CRC table |
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TABLE = ([] of UInt64).freeze |
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# |
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# Calculates the CRC checksum. |
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# |
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# @param [String] data |
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# The given data. |
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# |
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# @return [Integer] |
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# The CRC checksum. |
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# |
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def self.checksum(data) |
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crc = self.new |
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crc << data |
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return crc.checksum |
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end |
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# |
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# Packs the given CRC checksum. |
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# |
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# @return [String] |
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# The packed CRC checksum. |
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# |
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def self.pack(crc) |
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'\0' |
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end |
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# |
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# Initializes the CRC checksum. |
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# |
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def initialize |
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end |
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# |
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# The input block length. |
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# |
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# @return [1] |
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# |
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def block_length |
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1 |
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end |
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# |
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# The length of the digest. |
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# |
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# @return [Integer] |
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# The length in bytes. |
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# |
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def digest_length |
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(@width / 8.0).ceil |
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end |
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# |
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# Updates the CRC checksum with the given data. |
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# |
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# @param [String] data |
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# The data to update the CRC checksum with. |
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# |
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def update(data) |
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end |
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# |
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# @see {#update} |
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# |
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def <<(data) |
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update(data) |
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return self |
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end |
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# |
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# Resets the CRC checksum. |
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# |
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# @return [Integer] |
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# The default value of the CRC checksum. |
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# |
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def reset |
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@crc = @@INIT_CRC |
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end |
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# |
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# The resulting CRC checksum. |
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# |
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# @return [Integer] |
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# The resulting CRC checksum. |
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# |
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def checksum |
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@crc ^ @@XOR_MASK |
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end |
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# |
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# Finishes the CRC checksum calculation. |
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# |
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# @see {pack} |
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# |
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def finish |
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self.class.pack(checksum) |
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end |
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end |
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class CRC64 < CRC |
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@@WIDTH = 64_u64 |
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@@INIT_CRC : UInt64 = 0x0000000000000000_u64 |
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@@XOR_MASK : UInt64 = 0x0000000000000000_u64 |
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# Generated by `./pycrc.py --algorithm=table-driven --model=crc-64 --generate=c` |
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@@TABLE : Array(UInt64) = [ |
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0x0000000000000000_u64, 0x01b0000000000000_u64, 0x0360000000000000_u64, 0x02d0000000000000_u64, |
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0x06c0000000000000_u64, 0x0770000000000000_u64, 0x05a0000000000000_u64, 0x0410000000000000_u64, |
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0x0d80000000000000_u64, 0x0c30000000000000_u64, 0x0ee0000000000000_u64, 0x0f50000000000000_u64, |
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0x0b40000000000000_u64, 0x0af0000000000000_u64, 0x0820000000000000_u64, 0x0990000000000000_u64, |
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0x1b00000000000000_u64, 0x1ab0000000000000_u64, 0x1860000000000000_u64, 0x19d0000000000000_u64, |
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0x1dc0000000000000_u64, 0x1c70000000000000_u64, 0x1ea0000000000000_u64, 0x1f10000000000000_u64, |
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0x1680000000000000_u64, 0x1730000000000000_u64, 0x15e0000000000000_u64, 0x1450000000000000_u64, |
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0x1040000000000000_u64, 0x11f0000000000000_u64, 0x1320000000000000_u64, 0x1290000000000000_u64, |
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0x3600000000000000_u64, 0x37b0000000000000_u64, 0x3560000000000000_u64, 0x34d0000000000000_u64, |
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0x30c0000000000000_u64, 0x3170000000000000_u64, 0x33a0000000000000_u64, 0x3210000000000000_u64, |
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0x3b80000000000000_u64, 0x3a30000000000000_u64, 0x38e0000000000000_u64, 0x3950000000000000_u64, |
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0x3d40000000000000_u64, 0x3cf0000000000000_u64, 0x3e20000000000000_u64, 0x3f90000000000000_u64, |
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0x2d00000000000000_u64, 0x2cb0000000000000_u64, 0x2e60000000000000_u64, 0x2fd0000000000000_u64, |
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0x2bc0000000000000_u64, 0x2a70000000000000_u64, 0x28a0000000000000_u64, 0x2910000000000000_u64, |
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0x2080000000000000_u64, 0x2130000000000000_u64, 0x23e0000000000000_u64, 0x2250000000000000_u64, |
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0x2640000000000000_u64, 0x27f0000000000000_u64, 0x2520000000000000_u64, 0x2490000000000000_u64, |
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0x6c00000000000000_u64, 0x6db0000000000000_u64, 0x6f60000000000000_u64, 0x6ed0000000000000_u64, |
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0x6ac0000000000000_u64, 0x6b70000000000000_u64, 0x69a0000000000000_u64, 0x6810000000000000_u64, |
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0x6180000000000000_u64, 0x6030000000000000_u64, 0x62e0000000000000_u64, 0x6350000000000000_u64, |
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0x6740000000000000_u64, 0x66f0000000000000_u64, 0x6420000000000000_u64, 0x6590000000000000_u64, |
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0x7700000000000000_u64, 0x76b0000000000000_u64, 0x7460000000000000_u64, 0x75d0000000000000_u64, |
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0x71c0000000000000_u64, 0x7070000000000000_u64, 0x72a0000000000000_u64, 0x7310000000000000_u64, |
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0x7a80000000000000_u64, 0x7b30000000000000_u64, 0x79e0000000000000_u64, 0x7850000000000000_u64, |
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0x7c40000000000000_u64, 0x7df0000000000000_u64, 0x7f20000000000000_u64, 0x7e90000000000000_u64, |
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0x5a00000000000000_u64, 0x5bb0000000000000_u64, 0x5960000000000000_u64, 0x58d0000000000000_u64, |
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0x5cc0000000000000_u64, 0x5d70000000000000_u64, 0x5fa0000000000000_u64, 0x5e10000000000000_u64, |
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0x5780000000000000_u64, 0x5630000000000000_u64, 0x54e0000000000000_u64, 0x5550000000000000_u64, |
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0x5140000000000000_u64, 0x50f0000000000000_u64, 0x5220000000000000_u64, 0x5390000000000000_u64, |
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0x4100000000000000_u64, 0x40b0000000000000_u64, 0x4260000000000000_u64, 0x43d0000000000000_u64, |
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0x47c0000000000000_u64, 0x4670000000000000_u64, 0x44a0000000000000_u64, 0x4510000000000000_u64, |
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0x4c80000000000000_u64, 0x4d30000000000000_u64, 0x4fe0000000000000_u64, 0x4e50000000000000_u64, |
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0x4a40000000000000_u64, 0x4bf0000000000000_u64, 0x4920000000000000_u64, 0x4890000000000000_u64, |
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0xd800000000000000_u64, 0xd9b0000000000000_u64, 0xdb60000000000000_u64, 0xdad0000000000000_u64, |
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0xdec0000000000000_u64, 0xdf70000000000000_u64, 0xdda0000000000000_u64, 0xdc10000000000000_u64, |
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0xd580000000000000_u64, 0xd430000000000000_u64, 0xd6e0000000000000_u64, 0xd750000000000000_u64, |
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0xd340000000000000_u64, 0xd2f0000000000000_u64, 0xd020000000000000_u64, 0xd190000000000000_u64, |
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0xc300000000000000_u64, 0xc2b0000000000000_u64, 0xc060000000000000_u64, 0xc1d0000000000000_u64, |
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0xc5c0000000000000_u64, 0xc470000000000000_u64, 0xc6a0000000000000_u64, 0xc710000000000000_u64, |
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0xce80000000000000_u64, 0xcf30000000000000_u64, 0xcde0000000000000_u64, 0xcc50000000000000_u64, |
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0xc840000000000000_u64, 0xc9f0000000000000_u64, 0xcb20000000000000_u64, 0xca90000000000000_u64, |
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0xee00000000000000_u64, 0xefb0000000000000_u64, 0xed60000000000000_u64, 0xecd0000000000000_u64, |
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0xe8c0000000000000_u64, 0xe970000000000000_u64, 0xeba0000000000000_u64, 0xea10000000000000_u64, |
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0xe380000000000000_u64, 0xe230000000000000_u64, 0xe0e0000000000000_u64, 0xe150000000000000_u64, |
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0xe540000000000000_u64, 0xe4f0000000000000_u64, 0xe620000000000000_u64, 0xe790000000000000_u64, |
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0xf500000000000000_u64, 0xf4b0000000000000_u64, 0xf660000000000000_u64, 0xf7d0000000000000_u64, |
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0xf3c0000000000000_u64, 0xf270000000000000_u64, 0xf0a0000000000000_u64, 0xf110000000000000_u64, |
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0xf880000000000000_u64, 0xf930000000000000_u64, 0xfbe0000000000000_u64, 0xfa50000000000000_u64, |
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0xfe40000000000000_u64, 0xfff0000000000000_u64, 0xfd20000000000000_u64, 0xfc90000000000000_u64, |
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0xb400000000000000_u64, 0xb5b0000000000000_u64, 0xb760000000000000_u64, 0xb6d0000000000000_u64, |
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0xb2c0000000000000_u64, 0xb370000000000000_u64, 0xb1a0000000000000_u64, 0xb010000000000000_u64, |
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0xb980000000000000_u64, 0xb830000000000000_u64, 0xbae0000000000000_u64, 0xbb50000000000000_u64, |
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0xbf40000000000000_u64, 0xbef0000000000000_u64, 0xbc20000000000000_u64, 0xbd90000000000000_u64, |
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0xaf00000000000000_u64, 0xaeb0000000000000_u64, 0xac60000000000000_u64, 0xadd0000000000000_u64, |
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0xa9c0000000000000_u64, 0xa870000000000000_u64, 0xaaa0000000000000_u64, 0xab10000000000000_u64, |
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0xa280000000000000_u64, 0xa330000000000000_u64, 0xa1e0000000000000_u64, 0xa050000000000000_u64, |
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0xa440000000000000_u64, 0xa5f0000000000000_u64, 0xa720000000000000_u64, 0xa690000000000000_u64, |
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0x8200000000000000_u64, 0x83b0000000000000_u64, 0x8160000000000000_u64, 0x80d0000000000000_u64, |
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0x84c0000000000000_u64, 0x8570000000000000_u64, 0x87a0000000000000_u64, 0x8610000000000000_u64, |
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0x8f80000000000000_u64, 0x8e30000000000000_u64, 0x8ce0000000000000_u64, 0x8d50000000000000_u64, |
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0x8940000000000000_u64, 0x88f0000000000000_u64, 0x8a20000000000000_u64, 0x8b90000000000000_u64, |
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0x9900000000000000_u64, 0x98b0000000000000_u64, 0x9a60000000000000_u64, 0x9bd0000000000000_u64, |
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0x9fc0000000000000_u64, 0x9e70000000000000_u64, 0x9ca0000000000000_u64, 0x9d10000000000000_u64, |
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0x9480000000000000_u64, 0x9530000000000000_u64, 0x97e0000000000000_u64, 0x9650000000000000_u64, |
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0x9240000000000000_u64, 0x93f0000000000000_u64, 0x9120000000000000_u64, 0x9090000000000000_u64 |
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] |
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@crc : UInt64 |
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def initialize |
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@crc = @@INIT_CRC |
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reset |
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end |
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# |
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# Packs the CRC64 checksum. |
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# |
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# @param [Integer] crc |
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# The checksum to pack. |
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# |
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# @return [String] |
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# The packed checksum. |
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# |
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def self.pack(crc) |
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buffer = "" |
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buffer << ((crc & 0xff00000000000000) >> 56).chr |
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buffer << ((crc & 0xff000000000000) >> 48).chr |
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buffer << ((crc & 0xff0000000000) >> 40).chr |
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buffer << ((crc & 0xff00000000) >> 32).chr |
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buffer << ((crc & 0xff000000) >> 24).chr |
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buffer << ((crc & 0xff0000) >> 16).chr |
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buffer << ((crc & 0xff00) >> 8).chr |
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buffer << (crc & 0xff).chr |
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buffer |
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end |
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# |
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# Updates the CRC64 checksum. |
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# |
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# @param [String] data |
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# The data to update the checksum with. |
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# |
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def update(data) |
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data.each_byte do |b| |
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@crc = ((@@TABLE[(@crc ^ b) & 0xff] ^ (@crc >> 8)) & 0xffffffffffffffff) |
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end |
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return self |
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end |
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def digest |
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v = @crc |
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ptr = pointerof(v).as(UInt8*) |
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slice = Slice(UInt8).new(ptr,8) |
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return IO::ByteFormat::BigEndian.decode(UInt64, slice) |
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end |
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end |
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def hash_ripemd160(data : String) |
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ctx = OpenSSL::Digest.new("ripemd160") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_sha1(data : String) |
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ctx = OpenSSL::Digest.new("sha1") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_sha224(data : String) |
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ctx = OpenSSL::Digest.new("sha224") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_sha256(data : String) |
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ctx = OpenSSL::Digest.new("sha256") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_sha384(data : String) |
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ctx = OpenSSL::Digest.new("sha384") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_sha512(data : String) |
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ctx = OpenSSL::Digest.new("sha512") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_md4(data : String) |
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ctx = OpenSSL::Digest.new("md4") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_md5(data : String) |
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ctx = OpenSSL::Digest.new("md5") |
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ctx << data |
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digest = ctx.digest |
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tag = IO::ByteFormat::BigEndian.decode(UInt64, digest) |
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tag ^= IO::ByteFormat::BigEndian.decode(UInt64, digest+8) |
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return tag |
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end |
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def hash_crc64(data : String) |
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ctx = CRC64.new |
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ctx << data |
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return ctx.digest |
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end |
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if to_hex(hash_crc64("azertyuiopqsdfghjklmwxcvbn123456"))!="c9292a94ae08e4b2" |
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puts "CRITICAL CRC64 ERROR : got "+to_hex(hash_crc64("azertyuiopqsdfghjklmwxcvbn123456"))+"\n" |
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end |
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store = Hash(UInt64,Int32).new(10000000) |
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s3 = Set(UInt64).new |
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(5000000000_u64..5020000000_u64).each do |n| |
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h = hash_crc64(to_hex(n)) |
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store[h] = store.fetch(h,0)+1 |
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end |
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store.each do |k,v| |
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if v>1 |
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|
puts "Got #{v} duplicates for key #{to_hex(k)}" |
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|
end |
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|
s3 << k |
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|
end |
|
|
|
sum = BigRational.new(0) |
|
|
|
store.each do |k,v| |
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|
|
sum+=k |
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|
end |
|
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|
mean = sum/store.size |
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|
|
|
sumalt = BigRational.new(0) |
|
|
|
store.each do |k,v| |
|
|
|
sumalt+=((-mean+k)*(-mean+k)) |
|
|
|
end |
|
|
|
stddev=Math.sqrt(sumalt/store.size) |
|
|
|
|
|
|
|
puts "Mean of CRCs: "+mean.to_f.to_s |
|
|
|
puts "StdDev of CRCs: "+stddev.to_f.to_s |
|
|
|
|
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|
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|
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|
|
|
|
|
|
|
|
puts "32 bytes key ->" |
|
|
|
|
|
|
|
Benchmark.ips do |x| |
|
|
|
x.report("\tCRC64 32 bytes") { hash_crc64("azertyuiopqsdfghjklmwxcvbn123456") } |
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|
|
x.report("\tripemd160 32 bytes") { hash_ripemd160("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tMD4 32 bytes") { hash_md4("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tMD5 32 bytes") { hash_md5("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tSHA1 32 bytes") { hash_sha1("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tSHA224 32 bytes") { hash_sha224("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tSHA256 32 bytes") { hash_sha256("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tSHA384 32 bytes") { hash_sha384("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
x.report("\tSHA512 32 bytes") { hash_sha512("azertyuiopqsdfghjklmwxcvbn123456") } |
|
|
|
end |
|
|
|
|
|
|
|
puts "128 bytes key ->" |
|
|
|
|
|
|
|
Benchmark.ips do |x| |
|
|
|
str = "azertyuiopqsdfghjklmwxcvbn123456azertyuiopqsdfghjklmwxcvbn123456azertyuiopqsdfghjklmwxcvbn123456azertyuiopqsdfghjklmwxcvbn123456" |
|
|
|
x.report("\tCRC64 128 bytes") { hash_crc64(str) } |
|
|
|
x.report("\tripemd160 128 bytes") { hash_ripemd160(str) } |
|
|
|
x.report("\tMD4 128 bytes") { hash_md4(str) } |
|
|
|
x.report("\tMD5 128 bytes") { hash_md5(str) } |
|
|
|
x.report("\tSHA1 128 bytes") { hash_sha1(str) } |
|
|
|
x.report("\tSHA224 128 bytes") { hash_sha224(str) } |
|
|
|
x.report("\tSHA256 128 bytes") { hash_sha256(str) } |
|
|
|
x.report("\tSHA384 128 bytes") { hash_sha384(str) } |
|
|
|
x.report("\tSHA512 128 bytes") { hash_sha512(str) } |
|
|
|
end |
|
|
|
|
|
|
|
puts "1024 bytes key ->" |
|
|
|
|
|
|
|
Benchmark.ips do |x| |
|
|
|
str = "azertyuiopqsdfghjklmwxcvbn123456azertyuiopqsdfghjklmwxcvbn123456azertyuiopqsdfghjklmwxcvbn123456azertyuiopqsdfghjklmwxcvbn123456"*8 |
|
|
|
x.report("\tCRC64 1024 bytes") { hash_crc64(str) } |
|
|
|
x.report("\tripemd160 1024 bytes") { hash_ripemd160(str) } |
|
|
|
x.report("\tMD4 1024 bytes") { hash_md4(str) } |
|
|
|
x.report("\tMD5 1024 bytes") { hash_md5(str) } |
|
|
|
x.report("\tSHA1 1024 bytes") { hash_sha1(str) } |
|
|
|
x.report("\tSHA224 1024 bytes") { hash_sha224(str) } |
|
|
|
x.report("\tSHA256 1024 bytes") { hash_sha256(str) } |
|
|
|
x.report("\tSHA384 1024 bytes") { hash_sha384(str) } |
|
|
|
x.report("\tSHA512 1024 bytes") { hash_sha512(str) } |
|
|
|
end |
|
|
|
|