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69 lines
1.5 KiB
Markdown
69 lines
1.5 KiB
Markdown
# PKCS#11
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This is a Go implementation of the PKCS#11 API. It wraps the library closely, but uses Go idiom where
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it makes sense. It has been tested with SoftHSM.
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## SoftHSM
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* Make it use a custom configuration file `export SOFTHSM_CONF=$PWD/softhsm.conf`
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* Then use `softhsm` to init it
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~~~
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softhsm --init-token --slot 0 --label test --pin 1234
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~~~
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* Then use `libsofthsm2.so` as the pkcs11 module:
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~~~ go
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p := pkcs11.New("/usr/lib/softhsm/libsofthsm2.so")
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~~~
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## Examples
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A skeleton program would look somewhat like this (yes, pkcs#11 is verbose):
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~~~ go
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p := pkcs11.New("/usr/lib/softhsm/libsofthsm2.so")
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err := p.Initialize()
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if err != nil {
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panic(err)
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}
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defer p.Destroy()
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defer p.Finalize()
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slots, err := p.GetSlotList(true)
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if err != nil {
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panic(err)
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}
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session, err := p.OpenSession(slots[0], pkcs11.CKF_SERIAL_SESSION|pkcs11.CKF_RW_SESSION)
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if err != nil {
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panic(err)
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}
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defer p.CloseSession(session)
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err = p.Login(session, pkcs11.CKU_USER, "1234")
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if err != nil {
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panic(err)
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}
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defer p.Logout(session)
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p.DigestInit(session, []*pkcs11.Mechanism{pkcs11.NewMechanism(pkcs11.CKM_SHA_1, nil)})
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hash, err := p.Digest(session, []byte("this is a string"))
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if err != nil {
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panic(err)
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}
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for _, d := range hash {
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fmt.Printf("%x", d)
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}
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fmt.Println()
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~~~
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Further examples are included in the tests.
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To expose PKCS#11 keys using the [crypto.Signer interface](https://golang.org/pkg/crypto/#Signer),
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please see [github.com/thalesignite/crypto11](https://github.com/thalesignite/crypto11).
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