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Feature: add HSM support via PKCS11 dlopen
This requires dynamic library linking of Libc, hence, not compatible with our static releases. But, it was fairly simple to implement, so can be interesting for some users. Signed-off-by: Volodymyr Khoroz <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| //go:build !bashpki && cgopki | ||
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| package x509 | ||
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| import ( | ||
| "crypto" | ||
| "crypto/elliptic" | ||
| "fmt" | ||
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| "github.com/ThalesIgnite/crypto11" | ||
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| "github.com/foundriesio/fioctl/subcommands" | ||
| ) | ||
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| const hsmObjectId = "1" | ||
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| func newPkcs11Session(hsm HsmInfo) *crypto11.Context { | ||
| cfg := crypto11.Config{ | ||
| Path: hsm.Module, | ||
| TokenLabel: hsm.TokenLabel, | ||
| Pin: hsm.Pin, | ||
| MaxSessions: 0, | ||
| } | ||
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| ctx, err := crypto11.Configure(&cfg) | ||
| subcommands.DieNotNil(err) | ||
| return ctx | ||
| } | ||
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| func genAndSaveKeyToHsm(hsm HsmInfo, id, label string) crypto.Signer { | ||
| // See storage_pkcs11_tool.go why we need to first check for the key existance. | ||
| ctx := newPkcs11Session(hsm) | ||
| key, err := ctx.FindKeyPair([]byte(id), []byte(label)) | ||
| subcommands.DieNotNil(err) | ||
| if key != nil { | ||
| subcommands.DieNotNil(fmt.Errorf("Key %s already exists on the HSM device", label)) | ||
| } | ||
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| key, err = ctx.GenerateECDSAKeyPairWithLabel([]byte(id), []byte(label), elliptic.P256()) | ||
| subcommands.DieNotNil(err) | ||
| return key | ||
| } | ||
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| func loadKeyFromHsm(hsm HsmInfo, id, label string) crypto.Signer { | ||
| ctx := newPkcs11Session(hsm) | ||
| key, err := ctx.FindKeyPair([]byte(id), []byte(label)) | ||
| subcommands.DieNotNil(err) | ||
| if key == nil { | ||
| subcommands.DieNotNil(fmt.Errorf("Key %s not found on the HSM device", label)) | ||
| } | ||
| return key | ||
| } | ||
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| func (s *hsmStorage) genAndSaveKey() crypto.Signer { | ||
| return genAndSaveKeyToHsm(s.HsmInfo, hsmObjectId, s.Label) | ||
| } | ||
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| func (s *hsmStorage) loadKey() crypto.Signer { | ||
| return loadKeyFromHsm(s.HsmInfo, hsmObjectId, s.Label) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| //go:build !bashpki | ||
| //go:build !bashpki && !cgopki | ||
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| package x509 | ||
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