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List:       openssl-users
Subject:    Re: unknown message digest algorithm
From:       "Mody, Darshan Arvindkumar (Darshan)" <darshanmody () avaya ! com>
Date:       2019-06-20 17:29:41
Message-ID: DM6PR15MB290630920AADBC8BFD806FE0A7E40 () DM6PR15MB2906 ! namprd15 ! prod ! outlook ! com
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Hi

The openssl version is 1.0.2

Thanks and Regards
Darshan

From: Mody, Darshan Arvindkumar (Darshan)
Sent: Wednesday, 19 June, 19:49
Subject: unknown message digest algorithm
To: 'openssl-users@openssl.org', openssl-dev@openssl.org
Cc: Mahajan, Hrishikesh Ulhas (Hrishikesh), Phadnis, Mohan Vinayak (Mohan)


Hi

We are facing issues with regards to SSL_Read operation.

We see the error =93error:0D0C50A1:asn1 encoding routines:ASN1_item_verify:=
 unknown message digest algorithm=94 during SSL read operation. Below are m=
y queries

Is it possible to have such error during =91read operation=92 on OpensslWhe=
re can this issue occur?

To my understanding this issue can occur when a far-end client tries to est=
ablish the connection with the server and has issue with his certificates (=
SHA-2 encryption on the certificates)

Thanks for your guidance.

Regards
Darshan



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<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Hi<br>
<br>
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<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> The openssl version is 1.0.2<br>
<br>
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<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Thanks and Regards<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Darshan<br>
<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
                sans-serif; font-size: 11pt; color: black; ">
From: Mody, Darshan Arvindkumar (Darshan)<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
                sans-serif; font-size: 11pt; color: black; ">
Sent: Wednesday, 19 June, 19:49<br>
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<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
                sans-serif; font-size: 11pt; color: black; ">
Subject: unknown message digest algorithm<br>
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<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
                sans-serif; font-size: 11pt; color: black; ">
To: 'openssl-users@openssl.org', openssl-dev@openssl.org<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
                sans-serif; font-size: 11pt; color: black; ">
Cc: Mahajan, Hrishikesh Ulhas (Hrishikesh), Phadnis, Mohan Vinayak (Mohan)<br>
<br>
<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Hi<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> &nbsp;<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> We are facing issues with regards to \
SSL_Read operation. <br> </div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> &nbsp;<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> We see the error “error:0D0C50A1:asn1 \
encoding routines:ASN1_item_verify: unknown message digest algorithm” during SSL read \
operation. Below are my queries<br> </div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> &nbsp;<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Is it possible to have such error \
during ‘read operation’ on OpensslWhere can this issue occur? <br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> &nbsp;<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> To my understanding this issue can \
occur when a far-end client tries to establish the connection with the server and has \
issue with his certificates (SHA-2 encryption on the certificates)<br> </div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> &nbsp;<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Thanks for your guidance.<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> &nbsp;<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Regards<br>
</div>
<div dir="auto" style="direction: ltr; margin: 0; padding: 0; font-family: \
sans-serif; font-size: 11pt; color: black; "> Darshan<br>
<br>
<br>
</div>
</body>
</html>



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