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crypto: fix ambiguous expressions in DES implementation (#24814)

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Laurent Cheylus 2025-06-30 20:51:02 +02:00 committed by GitHub
parent 42638cb171
commit 9957327c37
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GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 2 deletions
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vlib/crypto/des/block.v
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@ -80,7 +80,7 @@ fn permute_initial_block(b u64) u64 {
block ^= b1 ^ b2 ^ b1 << 48 ^ b2 >> 48 block ^= b1 ^ b2 ^ b1 << 48 ^ b2 >> 48
// block = b1 b0 b5 b4 b3 b2 b7 b6 // block = b1 b0 b5 b4 b3 b2 b7 b6
b1 = block >> 32 & 0xff00ff b1 = (block >> 32) & 0xff00ff
b2 = (block & 0xff00ff00) b2 = (block & 0xff00ff00)
block ^= b1 << 32 ^ b2 ^ b1 << 8 ^ b2 << 24 // exchange b0 b4 with b3 b7 block ^= b1 << 32 ^ b2 ^ b1 << 8 ^ b2 << 24 // exchange b0 b4 with b3 b7
@ -156,7 +156,7 @@ fn permute_final_block(b u64) u64 {
b2 = block & 0x0000f0f00000f0f0 b2 = block & 0x0000f0f00000f0f0
block ^= b1 ^ b2 ^ b1 >> 12 ^ b2 << 12 block ^= b1 ^ b2 ^ b1 >> 12 ^ b2 << 12
b1 = block >> 32 & 0xff00ff b1 = (block >> 32) & 0xff00ff
b2 = (block & 0xff00ff00) b2 = (block & 0xff00ff00)
block ^= b1 << 32 ^ b2 ^ b1 << 8 ^ b2 << 24 block ^= b1 << 32 ^ b2 ^ b1 << 8 ^ b2 << 24