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simplify the LOAD KEY command to use a single APDU

This commit is contained in:
Michele Balistreri 2017-09-25 11:27:55 +03:00
parent da001198f6
commit 360fa6ff5e
2 changed files with 13 additions and 14 deletions
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22
APPLICATION.MD
View File

@ -102,27 +102,23 @@ the number of remaining retries is decreased and the SW 0x63CX, where X is the n
returned. When the number of remaining retries reaches 0 the PUK is blocked. When the PUK is blocked this command
always returns 0x63C0, even if the PUK is inserted correctly. In this case the wallet is effectively lost.
### LOAD KEYPAIR
### LOAD KEY
* CLA = 0x80
* INS = 0xD0
* P1 = key type
* P2 = key segment
* P1 = 0x01 (ECC SECP256k1 keypair)
* P2 = 0x00
* Data = the key data
* Response SW = 0x9000 on success, 0x6A80 if the format is invalid
* Preconditions: Secure Channel must be opened, user PIN must be verified
P1:
At the moment P1 can only be 0x01, but new key types could be added later. The ECC SECP256k1 keypair is
encoded in [BER-TLV format](http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-4_annex-d.aspx) according to
the following template
* 0x01 = ECC SECP256k1
P2:
* 0x01 = ECC S component (private key)
* 0x02 = ECC W component (public key, uncompressed)
At the moment P1 can only be 0x01, but new key types could be added later. Keypairs are loaded only when all segments
of private and public keys are loaded correctly.
- Tag 0xA1 = keypair template
- Tag 0x80 = ECC private key component
- Tag 0x81 = ECC public key component
This command is used to load or replace the keypair used for signing on the card. This command always aborts open
signing sessions, if any.

5
README.md
View File

@ -10,4 +10,7 @@ and implementation.
The project is built using Gradle with the [Fidesmo Javacard Gradle plugin](https://github.com/fidesmo/gradle-javacard).
You can set the JavaCard HOME not only through the enviroment but also creating a gradle.properties file with the property
"com.fidesmo.gradle.javacard.home" set to the correct path
"com.fidesmo.gradle.javacard.home" set to the correct path
This implementation will try to use only features available in JavaCard 2.2.2 for broader compatibility with existing
hardware.