vbatts/registry
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Merge pull request #1204 from MHBauer/gh1197

Browse source 
Formatting content digest calculation to avoid copyright symbols
This commit is contained in:
Richard Scothern 2015-11-25 11:24:06 -08:00
commit 7647f7fe76
2 changed files with 20 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
docs/spec/api.md
View file

@ -290,10 +290,11 @@ portion. The _algorithm_ identifies the methodology used to calculate the
digest. The _hex_ portion is the hex-encoded result of the hash.
We define a _digest_ string to match the following grammar:
digest := algorithm ":" hex
algorithm := /[A-Fa-f0-9_+.-]+/
hex := /[A-Fa-f0-9]+/
```
digest := algorithm ":" hex
algorithm := /[A-Fa-f0-9_+.-]+/
hex := /[A-Fa-f0-9]+/
```
Some examples of _digests_ include the following:
@ -313,7 +314,6 @@ uniqueness of the _digest_ but some canonicalization may be performed to
ensure consistent identifiers.
Let's use a simple example in pseudo-code to demonstrate a digest calculation:
```
let C = 'a small string'
let B = sha256(C)
@ -321,11 +321,11 @@ let D = 'sha256:' + EncodeHex(B)
let ID(C) = D
```
Above, we have bytestring _C_ passed into a function, _SHA256_, that returns a
bytestring B, which is the hash of _C_. _D_ gets the algorithm concatenated
with the hex encoding of _B_. We then define the identifier of _C_ to _ID(C)_
as equal to _D_. A digest can be verified by independently calculating _D_ and
comparing it with identifier _ID(C)_
Above, we have bytestring `C` passed into a function, `SHA256`, that returns a
bytestring `B`, which is the hash of `C`. `D` gets the algorithm concatenated
with the hex encoding of `B`. We then define the identifier of `C` to `ID(C)`
as equal to `D`. A digest can be verified by independently calculating `D` and
comparing it with identifier `ID(C)`.
#### Digest Header

20
docs/spec/api.md.tmpl
View file

@ -290,10 +290,11 @@ portion. The _algorithm_ identifies the methodology used to calculate the
digest. The _hex_ portion is the hex-encoded result of the hash.
We define a _digest_ string to match the following grammar:
digest := algorithm ":" hex
algorithm := /[A-Fa-f0-9_+.-]+/
hex := /[A-Fa-f0-9]+/
```
digest := algorithm ":" hex
algorithm := /[A-Fa-f0-9_+.-]+/
hex := /[A-Fa-f0-9]+/
```
Some examples of _digests_ include the following:
@ -313,7 +314,6 @@ uniqueness of the _digest_ but some canonicalization may be performed to
ensure consistent identifiers.
Let's use a simple example in pseudo-code to demonstrate a digest calculation:
```
let C = 'a small string'
let B = sha256(C)
@ -321,11 +321,11 @@ let D = 'sha256:' + EncodeHex(B)
let ID(C) = D
```
Above, we have bytestring _C_ passed into a function, _SHA256_, that returns a
bytestring B, which is the hash of _C_. _D_ gets the algorithm concatenated
with the hex encoding of _B_. We then define the identifier of _C_ to _ID(C)_
as equal to _D_. A digest can be verified by independently calculating _D_ and
comparing it with identifier _ID(C)_
Above, we have bytestring `C` passed into a function, `SHA256`, that returns a
bytestring `B`, which is the hash of `C`. `D` gets the algorithm concatenated
with the hex encoding of `B`. We then define the identifier of `C` to `ID(C)`
as equal to `D`. A digest can be verified by independently calculating `D` and
comparing it with identifier `ID(C)`
#### Digest Header