November 2018 - tpm2 - Ml01.01.Org

Need assistance to encrypt/decrypt data using tpm2-tss

by Sourajit Mukhopadhyay

Dear team, I am a beginner trying to learn more about the TPM and its functionalities. I am trying to write a basic code using the SAPI to make the TPM generate a key and encrypt some data/file, and then later decrypt the same. So far I have been unable to perform the desired task. I have referred to the sapi-assymetric-encrypt-decrypt test module. I am using the IBM TPM simulator on Linux. So far searching on the internet for anything relevant ended with nothing positive. I would be highly grateful if someone could give a short description/steps to guide me through this. Regards, Sourajit Mukhopadhyay

2 years, 3 months

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Re: [tpm2] It is a problem about device or resource busy when I use the tpm2-tools

by Sherry Zhang(BJ-RD)

Hi Tadeusz, I reinstalled tpm-tss , tpm-abrmd, tpm-tools. Now they can use with /dev/tpm0. Thank you! Sherry ????? ????????????????????????????????????????????????????? CONFIDENTIAL NOTE: This email contains confidential or legally privileged information and is for the sole use of its intended recipient. Any unauthorized review, use, copying or forwarding of this email or the content of this email is strictly prohibited.

2 years, 3 months

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tpm2-pkcs11: m4 changes

by Roberts, William C

If you're trying to build tpm2-pkcs11 project, note a recent PR will cause build breakages: https://github.com/tpm2-software/tpm2-pkcs11/pull/65 You'll need to satisfy m4 dependencies on: autoconf-archive gnulib The simplest way I found to satisfy them is to copy the requisite files similar to what the PR's CI changes are doing. There may be better ways, and If you know of other/better ways, please share them. Thanks, Bill

2 years, 3 months

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It is a problem about device or resource busy when I use the tpm2-tools

by Sherry Zhang(BJ-RD)

Hi all, The packages that I have installed(ubuntu16.04.2 with kernel-4.16.2) : # install TSS itself git clone https://github.com/tpm2-software/tpm2-tss.git cd tpm2-tss ./bootstrap ./configure --enable-unit make check sudo make install # Install abrmd itself git clone https://github.com/tpm2-software/tpm2-abrmd.git cd tpm2-abrmd ./bootstrap ./configure --enable-unit --with-dbuspolicydir=/etc/dbus-1/system.d dbus-launch make check sudo make install # Install tools itself git clone https://github.com/tpm2-software/tpm2-tools.git cd tpm2-tools ./bootstrap ./configure --enable-unit make check sudo make install And I can see /dev/tpm0 and /dev/tpmrm0 with the the tpm_tis.ko in the kernel-4.16.2. But I have a problem as follows: (1)#strace tpm2-abrmd --tcti="device:/dev/tpm0" --allow-root [cid:image001.png@01D471D2.AD346530] (2)In a C program: fd = open("/dev/tpm0",O_RDWR); result: open("/dev/tpm0", O_RDWR) = -1 EBUSY (Device or resource busy) So could someone give advice to me how to solve this problem? ????? ????????????????????????????????????????????????????? CONFIDENTIAL NOTE: This email contains confidential or legally privileged information and is for the sole use of its intended recipient. Any unauthorized review, use, copying or forwarding of this email or the content of this email is strictly prohibited.

2 years, 3 months

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tpm2-abrmd 2.0.3_rc0

by Philip Tricca

Good morning all, Now that Github is working again I've merged the remaining PRs that were stuck waiting for CI runs and tagged 2.0.3_rc0. We'll run the typical RC cycle over the next week so please provide feedback if you can. https://github.com/tpm2-software/tpm2-abrmd/releases/tag/2.0.3_rc0 Thanks, Philip

2 years, 3 months

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tpm2 November 2018