cryptographic smart cards By utilizing TPM devices that provide the same cryptographic capabilities as . TIGER TALK. Thursdays at 6 p.m. CT. Hosted by Brad Law and the Voice of the Tigers, Andy Burcham, weekly guests will include head football coach Hugh Freeze in the fall .
0 · Understanding and Evaluating Virtual Smart Cards
1 · Understanding and Evaluating Virtual S
2 · OpenPGP card
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By utilizing TPM devices that provide the same cryptographic capabilities as . 15. $\begingroup$. A Smart Card is small portable physical device, typically flat and in the format of a traditional credit card (sometime much smaller: an example is the SIM card in a mobile phone), embedding: An Integrated Circuit with memory providing permanent data retention; that's using EEPROM, Flash, or FRAM in most of today's Smart Cards.Yes, side-channel attacks are practical and a real concern, if the past is indicative of the future.. I've been professionally involved with Smart Cards since the mid eighties, and have repeatedly witnessed deployed systems vulnerable to many forms of side-channel attacks; examples (I personally did 1 and 3): A “P1 medium” [AIS31] true random number generator (TRNG) may not be directly used due to cryptographic reasons. Even smart cards or other advanced security solutions which possess high-quality physical sources of randomness .
The keys need to be derived from a secret master key and the smart card serial number. Key calculation can happen on the host system. Is it secure and practical to use PBKDF2(password=master_key, salt=serial_number, rounds=1000, dkLen=16) to get individual keys, or would an easier scheme like AES(key=master_key, data=serial_number) suffice .
PKCS#11 is a standard for the software interface to cryptographic tokens (such as HSMs or Smart Cards), aiming at compatibility between implementations made by different token vendors. It also allows the same API to use various cryptographic mechanisms performing similar tasks by changing only a few values, mostly the Mechanisms parameter (an .Upon decryption the AES data key is first decrypted with the private key on the smart card. This for instance requires a PIN code to be entered to gain access to the private key. Once the data key is decrypted it can be used to decrypt the rest of the data. Using authenticated encryption (such as GCM) should of course be preferred. *: Actually more often than not you don't want your high-value or encryption keys to be completely without backup as to allow recovery of plaintexts or continuation of operation in case the HSM dies, which is why HSMs tend to have mechanisms that allow to securely backup keys, unlike smart cards which instead require you to backup keys before .Another reason to use a True RNG is protection of the implementation of a cryptographic algorithm from side-channel attacks, a process often called "masking". For example, protection against DPA of the crypto-engines used in Smart Cards uses random data for that purpose. Using a Pseudo RNG here would create a chicken-and-egg problem (since .
In the context of Smart Cards, that allows an external device (e.g. SAM) to determine which key value is used by a particular card, and perform cryptographic operations like card authentication accordingly. Typically, the application will read the key version from the card and give it to the SAM. 3. I use a smart card - as read only device - for user identity as well as a password: The smart card (holds the user ID) is something I have; The password is something I know. Is this still two-factor authentication? authentication. passwords. 15. $\begingroup$. A Smart Card is small portable physical device, typically flat and in the format of a traditional credit card (sometime much smaller: an example is the SIM card in a mobile phone), embedding: An Integrated Circuit with memory providing permanent data retention; that's using EEPROM, Flash, or FRAM in most of today's Smart Cards.Yes, side-channel attacks are practical and a real concern, if the past is indicative of the future.. I've been professionally involved with Smart Cards since the mid eighties, and have repeatedly witnessed deployed systems vulnerable to many forms of side-channel attacks; examples (I personally did 1 and 3):
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A “P1 medium” [AIS31] true random number generator (TRNG) may not be directly used due to cryptographic reasons. Even smart cards or other advanced security solutions which possess high-quality physical sources of randomness .The keys need to be derived from a secret master key and the smart card serial number. Key calculation can happen on the host system. Is it secure and practical to use PBKDF2(password=master_key, salt=serial_number, rounds=1000, dkLen=16) to get individual keys, or would an easier scheme like AES(key=master_key, data=serial_number) suffice . PKCS#11 is a standard for the software interface to cryptographic tokens (such as HSMs or Smart Cards), aiming at compatibility between implementations made by different token vendors. It also allows the same API to use various cryptographic mechanisms performing similar tasks by changing only a few values, mostly the Mechanisms parameter (an .
Upon decryption the AES data key is first decrypted with the private key on the smart card. This for instance requires a PIN code to be entered to gain access to the private key. Once the data key is decrypted it can be used to decrypt the rest of the data. Using authenticated encryption (such as GCM) should of course be preferred. *: Actually more often than not you don't want your high-value or encryption keys to be completely without backup as to allow recovery of plaintexts or continuation of operation in case the HSM dies, which is why HSMs tend to have mechanisms that allow to securely backup keys, unlike smart cards which instead require you to backup keys before .Another reason to use a True RNG is protection of the implementation of a cryptographic algorithm from side-channel attacks, a process often called "masking". For example, protection against DPA of the crypto-engines used in Smart Cards uses random data for that purpose. Using a Pseudo RNG here would create a chicken-and-egg problem (since .
In the context of Smart Cards, that allows an external device (e.g. SAM) to determine which key value is used by a particular card, and perform cryptographic operations like card authentication accordingly. Typically, the application will read the key version from the card and give it to the SAM.
Understanding and Evaluating Virtual Smart Cards
Understanding and Evaluating Virtual S
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cryptographic smart cards|OpenPGP card