[#SHA512state_st]
= SHA512state_st
:mrdocs:

Incremental SHA‐384 / SHA‐512 digest state (also typedef'd as SHA512_CTX).

== Synopsis

Declared in `<openssl/sha.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct SHA512state_st;
----

== Types

[cols="1,4"]
|===
| Name| Description
| xref:SHA512state_st/_01record.adoc[`Unnamed union`] 
| Current message block viewed as 64‐bit words (`d)` or bytes (`p).`
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:SHA512state_st/Nh.adoc[`Nh`] 
| High 64 bits of the bit‐length counter.
| xref:SHA512state_st/Nl.adoc[`Nl`] 
| Low 64 bits of the bit‐length counter.
| xref:SHA512state_st/h.adoc[`h`] 
| Working hash state H0..H7 (eight 64‐bit words).
| xref:SHA512state_st/md_len.adoc[`md_len`] 
| Digest output length in bytes (SHA384_DIGEST_LENGTH or SHA512_DIGEST_LENGTH).
| xref:SHA512state_st/num.adoc[`num`] 
| Number of bytes currently buffered in u.p toward a full block.
| xref:SHA512state_st/u.adoc[`u`] 
| Current message block viewed as 64‐bit words (`d)` or bytes (`p).`
|===



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