[#190] crypto: Start Scheme enum from zero
Enumerate signature schemes of `Scheme` type from 0 in order to sync with NeoFS API protocol by values. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
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2 changed files with 5 additions and 10 deletions
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@ -48,12 +48,7 @@ func (x *Signature) Calculate(signer Signer, data []byte) error {
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m := (*refs.Signature)(x)
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scheme := refs.SignatureScheme(signer.Scheme())
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if scheme > 0 {
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scheme-- // to sync numeric values
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}
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m.SetScheme(scheme)
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m.SetScheme(refs.SignatureScheme(signer.Scheme()))
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m.SetSign(signature)
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m.SetKey(key)
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@ -69,7 +64,7 @@ func (x *Signature) Calculate(signer Signer, data []byte) error {
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func (x Signature) Verify(data []byte) bool {
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m := (*refs.Signature)(&x)
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f, ok := publicKeys[Scheme(m.GetScheme()+1)] // increment to sync numeric values
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f, ok := publicKeys[Scheme(m.GetScheme())]
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if !ok {
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return false
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}
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@ -6,12 +6,12 @@ import (
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// Scheme represents digital signature algorithm with fixed cryptographic hash function.
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//
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// Non-positive values are reserved and depend on context (e.g. unsupported scheme).
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type Scheme uint32
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// Negative values are reserved and depend on context (e.g. unsupported scheme).
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type Scheme int32
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//nolint:revive
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const (
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_ Scheme = iota
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_ Scheme = iota - 1
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ECDSA_SHA512 // ECDSA with SHA-512 hashing (FIPS 186-3)
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ECDSA_DETERMINISTIC_SHA256 // Deterministic ECDSA with SHA-256 hashing (RFC 6979)
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