python base 64 python base64 encoding and decoding in

base64 encoding and decoding in python

 

introduction:

  In some projects, the packet is transmitted through the interface base64 encrypted, so when performing automated interfaces, parameters need to be transmitted base64 encoding, get response packet to be decoded;

 

Base64 encoding is a "gentleman not anti-anti-villain" encoding. Widely used in MIME protocol, e-mail as a transmission coding, coding to generate reversible, after one or two may have "=" ascii character codes are generated.
Advantages: fast, ASCII characters can not be visually understood
disadvantages: encoding relatively long, very easy to be cracked, only for the case of non-critical information encrypted
python2 Base64 encoding and decoding is performed
>>> Import Base64
>>> S = 'I string '
>>> base64.b64encode A = (S)
>>> Print A
ztLKx9fWt / u0rg ==
>>> Print base64.b64decode (A)
I is a string

python3 not the same: 3.x because the characters are unicode encoded and the parameter b64encode function is byte type, so you must transcoding.

Base64 Import 

encodestr = base64.b64encode ( 'abcr34r344r'.encode (' UTF-8 ')) 
Print (encodestr) 
print results
b'YWJjcjM0cjM0NHI ='

results and we expected a little bit different, we just want to get YWJjcjM0cjM0NHI =, and string is b '' surrounded.
Then certainly it was said, with the regular taken out just fine. . . Do not worry. . .
b represents the byte mean, we just like to go back again byte conversion. . . Source follows
Base64 Import 

encodestr = base64.b64encode ( 'abcr34r344r'.encode (' UTF-. 8 ')) 
Print (STR (encodestr,' UTF-. 8 ')) 
print result
YWJjcjM0cjM0NHI =

introduction:

  In some projects, the packet is transmitted through the interface base64 encrypted, so when performing automated interfaces, parameters need to be transmitted base64 encoding, get response packet to be decoded;

 

Base64 encoding is a "gentleman not anti-anti-villain" encoding. Widely used in MIME protocol, e-mail as a transmission coding, coding to generate reversible, after one or two may have "=" ascii character codes are generated.
Advantages: fast, ASCII characters can not be visually understood
disadvantages: encoding relatively long, very easy to be cracked, only for the case of non-critical information encrypted
python2 Base64 encoding and decoding is performed
>>> Import Base64
>>> S = 'I string '
>>> base64.b64encode A = (S)
>>> Print A
ztLKx9fWt / u0rg ==
>>> Print base64.b64decode (A)
I is a string

python3 not the same: 3.x because the characters are unicode encoded and the parameter b64encode function is byte type, so you must transcoding.

Base64 Import 

encodestr = base64.b64encode ( 'abcr34r344r'.encode (' UTF-8 ')) 
Print (encodestr) 
print results
b'YWJjcjM0cjM0NHI ='

results and we expected a little bit different, we just want to get YWJjcjM0cjM0NHI =, and string is b '' surrounded.
Then certainly it was said, with the regular taken out just fine. . . Do not worry. . .
b represents the byte mean, we just like to go back again byte conversion. . . Source follows
Base64 Import 

encodestr = base64.b64encode ( 'abcr34r344r'.encode (' UTF-. 8 ')) 
Print (STR (encodestr,' UTF-. 8 ')) 
print result
YWJjcjM0cjM0NHI =

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Origin www.cnblogs.com/h694879357/p/12240818.html