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For example (from openssl ciphers -v), for AES128, the output:

AES128-SHA256 TLSv1.2 Kx=RSA Au=RSA Enc=AES(128) Mac=SHA256

is given. Does Enc=AES(128) imply AES(128)-CBC? I am inclined to believe so as no mode is mentioned and the output from openssl list-cipher-algorithms shows AES128 => AES-128-CBC.

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    This is already answered here - you can get the modes of operation on the openssl man page – Joe May 4 '18 at 15:47
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Yes. The OpenSSL names are slightly different to the standard names. The man page here has the mapping:

https://www.openssl.org/docs/man1.1.0/apps/ciphers.html

In particular see this:

TLS_RSA_WITH_AES_128_CBC_SHA            AES128-SHA

So the OpenSSL name AES128-SHA corresponds to the standard ciphersuite using RSA and AES-128 in CBC mode.

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