From: Chenxi Z <cxzhang1981 at hotmail.com>
To: tpm2@lists.01.org
Subject: [tpm2] Question about RSA 2048 AK key size
Date: Sat, 22 Feb 2020 00:05:50 +0000 [thread overview]
Message-ID: <20200222000550.2820.79421@ml01.vlan13.01.org> (raw)
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I created a 2048 RSA AK by using the command below :
tpm2_createak -C 0x81010001 -c ak.ctx -u ak.pub -r ak.priv -n ak.name -P dummypwd -p dummypwd
ak.priv file size = 224 bytes
#stat --printf="%s" ak.priv
224
ak.pub file size = 282 bytes.
$stat --printf="%s" ak.pub
282
Question: Do the AK private key and public key always have the same key sizes, ie, 224 and 282?
Is there any possibility that the key size could be changed because of random number or big prime number changes during key generation?
TPM2 tools version:
tpm2-tools-4.1.1
tpm2-abrmd-2.3.1
tpm2-tss-2.3.2
reply other threads:[~2020-02-22 0:05 UTC|newest]
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