yaole
34 lines
895 B
Go
34 lines
895 B
Go
// In amd64, Encrypt4 implemented
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package sm4
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import "xdx.jelly/xgcl/internal/subtle"
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//go:noescape
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func encrypt4(dst []byte, src []byte, rk []uint32)
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func (c *sm4CipherAsm) Encrypt4(dst, src []byte) {
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if len(src) < BlockSize {
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panic("gcl/sm/sm4/Encrypt: input not full block")
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}
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if len(dst) < BlockSize {
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panic("gcl/sm/sm4/Encrypt: output not full block")
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}
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if subtle.InexactOverlap(dst[:BlockSize], src[:BlockSize]) {
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panic("gcl/sm/sm4/Encrypt: invalid buffer overlap")
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}
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encrypt4(dst, src, c.encKey[:])
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}
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func (c *sm4CipherAsm) Decrypt4(dst, src []byte) {
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if len(src) < BlockSize {
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panic("gcl/sm/sm4/Decrypt: input not full block")
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}
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if len(dst) < BlockSize {
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panic("gcl/sm/sm4/Decrypt: output not full block")
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}
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if subtle.InexactOverlap(dst[:BlockSize], src[:BlockSize]) {
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panic("gcl/sm/sm4/Decrypt: invalid buffer overlap")
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}
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encrypt4(dst, src, c.decKey[:])
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}
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