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https://issues.apache.org/jira/browse/CALCITE-5642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17714398#comment-17714398
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Dan Zou commented on CALCITE-5642:
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[~njiang] Thanks for the information, and I found a Q&A in the docs [Handling
cryptography within an ASF release|https://infra.apache.org/crypto.html].
{quote}
Do digest algorithms such as MD5 and SHA1 require notification?
No. One-way algorithms such as MD5 or SHA1, or more sophisticated
implementations, do not require notification. Only encryption algorithms do.
{quote}
According to this, I think there is no risk of violating export control
restrictions.
> Add SHA256, SHA512 functions
> ----------------------------
>
> Key: CALCITE-5642
> URL: https://issues.apache.org/jira/browse/CALCITE-5642
> Project: Calcite
> Issue Type: New Feature
> Reporter: Dan Zou
> Assignee: Dan Zou
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Add SHA256, SHA512 functions and enable them for BigQuery.
> SHA256: Computes the hash of the input using the [SHA-256
> algorithm|https://en.wikipedia.org/wiki/SHA-2]. This function returns 32
> bytes.
> SHA512: Computes the hash of the input using the [SHA-512
> algorithm|https://en.wikipedia.org/wiki/SHA-2]. This function returns 64
> bytes.
> See more details in [BigQuery
> Doc|https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#sha256]
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