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SHA256 spelling fix #11062

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SHA256 spelling fix #11062

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8 changes: 4 additions & 4 deletions xml/System.Security.Cryptography/HMACSHA256.xml
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<format type="text/markdown"><![CDATA[

## Remarks
<xref:System.Security.Cryptography.HMACSHA256> is a type of keyed hash algorithm that is constructed from the SHA-256 hash function and used as a Hash-based Message Authentication Code (HMAC). The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.
<xref:System.Security.Cryptography.HMACSHA256> is a type of keyed hash algorithm that is constructed from the SHA256 hash function and used as a Hash-based Message Authentication Code (HMAC). The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.

An HMAC can be used to determine whether a message sent over an insecure channel has been tampered with, provided that the sender and receiver share a secret key. The sender computes the hash value for the original data and sends both the original data and hash value as a single message. The receiver recalculates the hash value on the received message and checks that the computed HMAC matches the transmitted HMAC.

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<format type="text/markdown"><![CDATA[

## Remarks
<xref:System.Security.Cryptography.HMACSHA256> is a type of keyed hash algorithm that is constructed from the SHA-256 hash function and used as a Hash-based Message Authentication Code (HMAC). The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.
<xref:System.Security.Cryptography.HMACSHA256> is a type of keyed hash algorithm that is constructed from the SHA256 hash function and used as a Hash-based Message Authentication Code (HMAC). The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.

This constructor uses a 64-byte, randomly generated key.

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<Parameter Name="key" Type="System.Byte[]" />
</Parameters>
<Docs>
<param name="key">The secret key for HMAC computation. The key can be any length. However, the recommended size is 64 bytes. If the key is more than 64 bytes long, it is hashed (using SHA-256) to derive a 32-byte key.</param>
<param name="key">The secret key for HMAC computation. The key can be any length. However, the recommended size is 64 bytes. If the key is more than 64 bytes long, it is hashed (using SHA256) to derive a 32-byte key.</param>
<summary>Initializes a new instance of the <see cref="T:System.Security.Cryptography.HMACSHA256" /> class with the specified key data.</summary>
<remarks>
<format type="text/markdown"><![CDATA[

## Remarks
<xref:System.Security.Cryptography.HMACSHA256> is a type of keyed hash algorithm that is constructed from the SHA-256 hash function and used as a Hash-based Message Authentication Code. The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.
<xref:System.Security.Cryptography.HMACSHA256> is a type of keyed hash algorithm that is constructed from the SHA256 hash function and used as a Hash-based Message Authentication Code. The HMAC process mixes a secret key with the message data, hashes the result with the hash function, mixes that hash value with the secret key again, and then applies the hash function a second time. The output hash is 256 bits in length.



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