32 lines
1.1 KiB
Nim
32 lines
1.1 KiB
Nim
# Constantine
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# Copyright (c) 2018-2019 Status Research & Development GmbH
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# Copyright (c) 2020-Present Mamy André-Ratsimbazafy
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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../../constantine/arithmetic/bigints,
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../../constantine/config/[common, curves],
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../../constantine/elliptic/[ec_weierstrass_affine, ec_weierstrass_projective]
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# Canaries
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# --------------------------------------------------------------
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#
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# This file initializes a type with canary
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# to detect initialization bugs that are silent
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# when initialized from zero.
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when sizeof(SecretWord) == 8:
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const Canary = SecretWord(0xAAFACADEAAFACADE'u64)
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else:
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const Canary = SecretWord(0xAAFACADE'u32)
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func canary*(T: typedesc): T =
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when T is BigInt:
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for i in 0 ..< result.limbs.len:
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result.limbs[0] = Canary
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else:
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{.error: "Not implemented".}
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