smart card private key extraction Consider you lost your laptop with sensitive data and your smart card that contains the private key for your GnuPG and Truecrypt accounts. The smartcard is secured with a 8-digit PIN. First time installing CyanogenMod 9.1 to your Galaxy Ace i, or coming from .
0 · piv private key extract
1 · piv private key
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Consider you lost your laptop with sensitive data and your smart card that contains the private key for your GnuPG and Truecrypt accounts. The smartcard is secured with a 8-digit PIN.Forget about the remote part. Just give your smartcard to the attacker and tell him to .
A smart card is supposed to resist physical tampering. Heavy hardware such as . Forget about the remote part. Just give your smartcard to the attacker and tell him to use any resources to get the private key. He will not be able to do so on a local attack let alone . You can't extract the private key out of a PIV smartcard, as this is done as a secure vault for the private key. But you can use a Putty agent compatible with Pageant which uses a .A smart card is supposed to resist physical tampering. Heavy hardware such as HSM and payment terminals use active protections: basically, their "secrets" (e.g. private keys) are .
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Using PuTTy integration, it works great for SSH authentication. I was under the impression that you shouldn't be able to export the private key if it is safely stored on the smart card (YubiKey), . I have generated a pair of RSA keys on a smart card with OpenSC tools and retrieved it as wrapped key blob encrypted with DKEK key: I am working on a use-case where OpenPGP is being used to generate a public key pair on a smart card (Yubikey). The smart card is then to be shipped off to the user. Trying . Transferring, or importing, the private onto the Smartcard is a bit easier than importing PIV certificates. You can use the usual gpg tools. gpg --card-status. On Windows. .
In some cases, such as Yubikeys doing FIDO2 operations, private keys can be exported, but only encrypted by a key embedded into the device. This is intentional, because it .Consider you lost your laptop with sensitive data and your smart card that contains the private key for your GnuPG and Truecrypt accounts. The smartcard is secured with a 8-digit PIN.
Forget about the remote part. Just give your smartcard to the attacker and tell him to use any resources to get the private key. He will not be able to do so on a local attack let alone on a remote attack. That is all what tamper proof is about. . You can't extract the private key out of a PIV smartcard, as this is done as a secure vault for the private key. But you can use a Putty agent compatible with Pageant which uses a PIV card as a secure key storage, that's the clear goal of PIVageant, that my company developed.A smart card is supposed to resist physical tampering. Heavy hardware such as HSM and payment terminals use active protections: basically, their "secrets" (e.g. private keys) are stored in a SRAM module, with a battery, and they are never completely "off". As part of the decryption process, if the private key is on a smart card, a call is made to the smart card subsystem by using the specified CSP to extract the certificate corresponding to the user's public key.
Using PuTTy integration, it works great for SSH authentication. I was under the impression that you shouldn't be able to export the private key if it is safely stored on the smart card (YubiKey), as crypto operations are handed off to the cards onboard processor to avoid it leaving. I have generated a pair of RSA keys on a smart card with OpenSC tools and retrieved it as wrapped key blob encrypted with DKEK key:
I am working on a use-case where OpenPGP is being used to generate a public key pair on a smart card (Yubikey). The smart card is then to be shipped off to the user. Trying to emulate this locally the following is being done: generate keys on smart card; remove GnuPG home directory; access smart card to re-generate GnuPG home directory
The smartcard contains a key pair composed by a private key and a public key wrapped into a X509 certificate. It is possible to export the certificate and copy to your laptop but to identify, sign or decrypt it is necessary to use the private key. Both CryptoAPI (well the CSP for the smart card) and PKCS#11 allows you to have exportable key pairs. However it's common to use non exportable private keys to use the smart card strength to its full potential.Consider you lost your laptop with sensitive data and your smart card that contains the private key for your GnuPG and Truecrypt accounts. The smartcard is secured with a 8-digit PIN. Forget about the remote part. Just give your smartcard to the attacker and tell him to use any resources to get the private key. He will not be able to do so on a local attack let alone on a remote attack. That is all what tamper proof is about. .
You can't extract the private key out of a PIV smartcard, as this is done as a secure vault for the private key. But you can use a Putty agent compatible with Pageant which uses a PIV card as a secure key storage, that's the clear goal of PIVageant, that my company developed.A smart card is supposed to resist physical tampering. Heavy hardware such as HSM and payment terminals use active protections: basically, their "secrets" (e.g. private keys) are stored in a SRAM module, with a battery, and they are never completely "off". As part of the decryption process, if the private key is on a smart card, a call is made to the smart card subsystem by using the specified CSP to extract the certificate corresponding to the user's public key.
Using PuTTy integration, it works great for SSH authentication. I was under the impression that you shouldn't be able to export the private key if it is safely stored on the smart card (YubiKey), as crypto operations are handed off to the cards onboard processor to avoid it leaving. I have generated a pair of RSA keys on a smart card with OpenSC tools and retrieved it as wrapped key blob encrypted with DKEK key:
I am working on a use-case where OpenPGP is being used to generate a public key pair on a smart card (Yubikey). The smart card is then to be shipped off to the user. Trying to emulate this locally the following is being done: generate keys on smart card; remove GnuPG home directory; access smart card to re-generate GnuPG home directory The smartcard contains a key pair composed by a private key and a public key wrapped into a X509 certificate. It is possible to export the certificate and copy to your laptop but to identify, sign or decrypt it is necessary to use the private key.
piv private key extract
piv private key
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smart card private key extraction|piv private key